diff --git a/docs/MANUAL.md b/docs/MANUAL.md
index e91771b..859af91 100644
--- a/docs/MANUAL.md
+++ b/docs/MANUAL.md
@@ -94,6 +94,10 @@ Toma los siguientes parámetros:
   - **apikey**: La apikey de un usuario del portal de destino con los permisos para crear el dataset bajo la
   organización pasada como parámetro y los grupos nuevos en caso de que el dataset tenga un super theme que no
   estuviera presente anteriormente en el catálogo de destino.
+  
+  **Advertencia**: La función `push_dataset_to_ckan()` sólo garantiza consistencia con los estándares de CKAN. Para
+  mantener una consistencia más estricta dentro del catálogo a federar, es necesario validar los datos antes de pasarlos
+  a la función. 
 
 ## Uso
     
diff --git a/pydatajson/ckan_utils.py b/pydatajson/ckan_utils.py
index 3f7ea0d..196815c 100644
--- a/pydatajson/ckan_utils.py
+++ b/pydatajson/ckan_utils.py
@@ -29,7 +29,7 @@ def map_dataset_to_package(dataset, catalog_id):
     append_attribute_to_extra(package, dataset, 'accrualPeriodicity')
 
     distributions = dataset['distribution']
-    package['resources'] = map_distributions_to_resources(distributions, package['id'])
+    package['resources'] = map_distributions_to_resources(distributions, catalog_id)
 
     super_themes = dataset['superTheme']
     package['groups'] = [{'name': re.sub(r'[^a-z-_]+', '', super_theme.lower())} for super_theme in super_themes]
@@ -77,12 +77,12 @@ def convert_iso_string_to_utc(date_string):
     return utc_date_time.isoformat()
 
 
-def map_distributions_to_resources(distributions, package_id):
+def map_distributions_to_resources(distributions, catalog_id):
     resources = []
     for distribution in distributions:
         resource = dict()
 #       Obligatorios
-        resource['id'] = package_id+'_'+distribution['identifier']
+        resource['id'] = catalog_id + '_' + distribution['identifier']
         resource['name'] = distribution['title']
         resource['url'] = distribution['downloadURL']
         resource['created'] = convert_iso_string_to_utc(distribution['issued'])
diff --git a/pydatajson/federation.py b/pydatajson/federation.py
index 94e0f64..ba28363 100644
--- a/pydatajson/federation.py
+++ b/pydatajson/federation.py
@@ -23,8 +23,6 @@ def push_dataset_to_ckan(catalog, catalog_id, owner_org, dataset_origin_identifi
         Returns:
             str: El id del dataset en el catálogo de destino.
     """
-    if not catalog.is_valid_catalog():
-        raise ValueError('The catalog is invalid')
     dataset = catalog.get_dataset(dataset_origin_identifier)
     ckan_portal = RemoteCKAN(portal_url, apikey=apikey)
 
diff --git a/tests/cassetes/ckan_integration/tearDown.yaml b/tests/cassetes/ckan_integration/tearDown.yaml
index c16885f..131984e 100644
--- a/tests/cassetes/ckan_integration/tearDown.yaml
+++ b/tests/cassetes/ckan_integration/tearDown.yaml
@@ -12,13 +12,13 @@ interactions:
     uri: http://181.209.63.239/api/action/package_list
   response:
     body: {string: !!python/unicode '{"help": "http://181.209.63.239/api/3/action/help_show?name=package_list",
-        "success": true, "result": ["dataset-de-prueba", "sistemadecontratacioneselectrnicas"]}'}
+        "success": true, "result": ["dataset-de-prueba", "fruta", "sistemadecontratacioneselectrnicas"]}'}
     headers:
       cache-control: [no-cache]
       connection: [keep-alive]
-      content-length: ['162']
+      content-length: ['171']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:50 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:02 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -41,7 +41,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['108']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:50 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:02 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -58,13 +58,13 @@ interactions:
     uri: http://181.209.63.239/api/action/package_list
   response:
     body: {string: !!python/unicode '{"help": "http://181.209.63.239/api/3/action/help_show?name=package_list",
-        "success": true, "result": ["dataset-de-prueba", "sistemadecontratacioneselectrnicas"]}'}
+        "success": true, "result": ["dataset-de-prueba", "fruta", "sistemadecontratacioneselectrnicas"]}'}
     headers:
       cache-control: [no-cache]
       connection: [keep-alive]
-      content-length: ['162']
+      content-length: ['171']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:51 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:03 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -87,7 +87,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['108']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:51 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:03 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -104,13 +104,13 @@ interactions:
     uri: http://181.209.63.239/api/action/package_list
   response:
     body: {string: !!python/unicode '{"help": "http://181.209.63.239/api/3/action/help_show?name=package_list",
-        "success": true, "result": ["dataset-de-prueba", "sistemadecontratacioneselectrnicas"]}'}
+        "success": true, "result": ["dataset-de-prueba", "fruta", "sistemadecontratacioneselectrnicas"]}'}
     headers:
       cache-control: [no-cache]
       connection: [keep-alive]
-      content-length: ['162']
+      content-length: ['171']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:52 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:04 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -133,30 +133,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['108']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:52 GMT']
-      pragma: [no-cache]
-      server: [nginx/1.11.9]
-    status: {code: 200, message: OK}
-- request:
-    body: !!python/unicode '{}'
-    headers:
-      Accept: ['*/*']
-      Accept-Encoding: ['gzip, deflate']
-      Connection: [keep-alive]
-      Content-Length: ['2']
-      Content-Type: [application/json]
-      User-Agent: ['ckanapi/4.0 (+https://github.com/ckan/ckanapi)']
-    method: POST
-    uri: http://181.209.63.239/api/action/package_list
-  response:
-    body: {string: !!python/unicode '{"help": "http://181.209.63.239/api/3/action/help_show?name=package_list",
-        "success": true, "result": ["dataset-de-prueba"]}'}
-    headers:
-      cache-control: [no-cache]
-      connection: [keep-alive]
-      content-length: ['124']
-      content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:52 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:04 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -174,13 +151,13 @@ interactions:
   response:
     body: {string: !!python/unicode '{"help": "http://181.209.63.239/api/3/action/help_show?name=package_list",
         "success": true, "result": ["basededatoslegislativosinfoleg", "dataset-de-prueba",
-        "sistemadecontratacioneselectrnicas"]}'}
+        "fruta", "sistemadecontratacioneselectrnicas"]}'}
     headers:
       cache-control: [no-cache]
       connection: [keep-alive]
-      content-length: ['196']
+      content-length: ['205']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:55 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:06 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -203,7 +180,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['108']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:56 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:07 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -226,7 +203,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['108']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:56 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:07 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
diff --git a/tests/cassetes/ckan_integration/test_dataset_is_created_correctly.yaml b/tests/cassetes/ckan_integration/test_dataset_is_created_correctly.yaml
index 1fd5bbc..86040ad 100644
--- a/tests/cassetes/ckan_integration/test_dataset_is_created_correctly.yaml
+++ b/tests/cassetes/ckan_integration/test_dataset_is_created_correctly.yaml
@@ -18,7 +18,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['127']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:49 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:01 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -110,7 +110,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['5727']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:49 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:01 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -158,13 +158,13 @@ interactions:
       {\"type\": \"string\", \"description\": \"Clase de la convocatoria.\", \"title\":
       \"clase_convocatoria\"}, {\"type\": \"string\", \"description\": \"Objeto/objetivo
       de la convocatoria\", \"title\": \"objeto_convocatoria\"}]", "created": "2016-04-14T22:48:05.433640",
-      "last_modified": "2016-04-19T22:48:05.433640", "size": 5120, "id": "datosargentina_99db6631-d1c9-470b-a73e-c62daa32c777_1.1",
+      "last_modified": "2016-04-19T22:48:05.433640", "size": 5120, "id": "datosargentina_1.1",
       "name": "Convocatorias abiertas durante el a\u00f1o 2015"}]}'
     headers:
       Accept: ['*/*']
       Accept-Encoding: ['gzip, deflate']
       Connection: [keep-alive]
-      Content-Length: ['4033']
+      Content-Length: ['3996']
       Content-Type: [application/json]
       User-Agent: ['ckanapi/4.0 (+https://github.com/ckan/ckanapi)']
     method: POST
@@ -178,7 +178,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['195']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:49 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:01 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 404, message: Not Found}
@@ -226,13 +226,13 @@ interactions:
       {\"type\": \"string\", \"description\": \"Clase de la convocatoria.\", \"title\":
       \"clase_convocatoria\"}, {\"type\": \"string\", \"description\": \"Objeto/objetivo
       de la convocatoria\", \"title\": \"objeto_convocatoria\"}]", "created": "2016-04-14T22:48:05.433640",
-      "last_modified": "2016-04-19T22:48:05.433640", "size": 5120, "id": "datosargentina_99db6631-d1c9-470b-a73e-c62daa32c777_1.1",
+      "last_modified": "2016-04-19T22:48:05.433640", "size": 5120, "id": "datosargentina_1.1",
       "name": "Convocatorias abiertas durante el a\u00f1o 2015"}]}'
     headers:
       Accept: ['*/*']
       Accept-Encoding: ['gzip, deflate']
       Connection: [keep-alive]
-      Content-Length: ['4033']
+      Content-Length: ['3996']
       Content-Type: [application/json]
       User-Agent: ['ckanapi/4.0 (+https://github.com/ckan/ckanapi)']
     method: POST
@@ -244,7 +244,7 @@ interactions:
         Administrativa. Oficina Nacional de Contrataciones. Direcci\u00f3n de Compras
         Electr\u00f3nicas.", "relationships_as_object": [], "private": false, "maintainer_email":
         "onc-compraselectronicas@modernizacion.gob.ar", "num_tags": 4, "id": "datosargentina_99db6631-d1c9-470b-a73e-c62daa32c777",
-        "metadata_created": "2018-02-07T15:48:49.919946", "metadata_modified": "2018-02-07T15:48:49.943976",
+        "metadata_created": "2018-02-08T18:34:01.823992", "metadata_modified": "2018-02-08T18:34:01.844425",
         "author": "Ministerio de Modernizaci\u00f3n. Secretar\u00eda de Modernizaci\u00f3n
         Administrativa. Oficina Nacional de Contrataciones", "author_email": "onc@modernizacion.gob.ar",
         "state": "active", "version": null, "creator_user_id": "824dc36b-38b0-448d-bcb2-dda225089ba2",
@@ -272,15 +272,15 @@ interactions:
         \"clase_convocatoria\"}, {\"type\": \"string\", \"description\": \"Objeto/objetivo
         de la convocatoria\", \"title\": \"objeto_convocatoria\"}]", "package_id":
         "datosargentina_99db6631-d1c9-470b-a73e-c62daa32c777", "webstore_last_updated":
-        null, "datastore_active": false, "id": "datosargentina_99db6631-d1c9-470b-a73e-c62daa32c777_1.1",
-        "size": "5120", "state": "active", "accessURL": "http://datos.gob.ar/dataset/sistema-de-contrataciones-electronicas-argentina-compra/archivo/fa3603b3-0af7-43cc-9da9-90a512217d8a",
+        null, "datastore_active": false, "id": "datosargentina_1.1", "size": "5120",
+        "state": "active", "accessURL": "http://datos.gob.ar/dataset/sistema-de-contrataciones-electronicas-argentina-compra/archivo/fa3603b3-0af7-43cc-9da9-90a512217d8a",
         "hash": "", "description": "Listado de las convocatorias abiertas durante
         el a\u00f1o 2015 en el sistema de contrataciones electr\u00f3nicas", "format":
         "CSV", "last_modified": "2016-04-19T22:48:05.433640", "url_type": null, "mimetype":
         "text/csv", "cache_url": null, "name": "Convocatorias abiertas durante el
         a\u00f1o 2015", "created": "2016-04-14T22:48:05.433640", "url": "http://186.33.211.253/dataset/99db6631-d1c9-470b-a73e-c62daa32c420/resource/4b7447cb-31ff-4352-96c3-589d212e1cc9/download/convocatorias-abiertas-anio-2015.csv",
         "webstore_url": null, "mimetype_inner": null, "position": 0, "revision_id":
-        "5e629b7f-cd66-4178-b0e4-c2bb996494b4", "resource_type": null}], "num_resources":
+        "b9d77885-f722-452d-9f9a-fe4d23308ccd", "resource_type": null}], "num_resources":
         1, "tags": [{"vocabulary_id": null, "state": "active", "display_name": "bienes",
         "id": "7cacc193-5776-46b3-8f31-ccc52042248f", "name": "bienes"}, {"vocabulary_id":
         null, "state": "active", "display_name": "compras", "id": "27e042d0-87b8-416e-9745-8b504dc182e0",
@@ -289,7 +289,7 @@ interactions:
         {"vocabulary_id": null, "state": "active", "display_name": "convocatorias",
         "id": "a7cf30d4-d35a-433a-914f-47727d61b6f7", "name": "convocatorias"}], "groups":
         [{"display_name": "econ", "description": "", "image_display_url": "", "title":
-        "", "id": "bde6ea2b-8d4c-487a-a971-3ba906bebab3", "name": "econ"}], "license_id":
+        "", "id": "ddf819de-dfd5-474d-9335-9a2d74c28f64", "name": "econ"}], "license_id":
         "notspecified", "relationships_as_subject": [], "organization": {"description":
         "", "created": "2018-02-07T15:37:27.733652", "title": "oficina-de-muestra",
         "name": "oficina-de-muestra", "is_organization": true, "state": "active",
@@ -304,13 +304,13 @@ interactions:
         "[\"spa\"]"}, {"key": "modified", "value": "2016-04-19T19:48:05.433640-03:00"},
         {"key": "spatial", "value": "ARG"}, {"key": "super_theme", "value": "[\"econ\"]"},
         {"key": "temporal", "value": "2015-01-01/2015-12-31"}], "title": "Sistema
-        de contrataciones electr\u00f3nicas", "revision_id": "5e629b7f-cd66-4178-b0e4-c2bb996494b4"}}'}
+        de contrataciones electr\u00f3nicas", "revision_id": "b9d77885-f722-452d-9f9a-fe4d23308ccd"}}'}
     headers:
       cache-control: [no-cache]
       connection: [keep-alive]
-      content-length: ['5865']
+      content-length: ['5828']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:50 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:02 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
diff --git a/tests/cassetes/ckan_integration/test_dataset_is_updated_correctly.yaml b/tests/cassetes/ckan_integration/test_dataset_is_updated_correctly.yaml
index 993d88b..3c1f201 100644
--- a/tests/cassetes/ckan_integration/test_dataset_is_updated_correctly.yaml
+++ b/tests/cassetes/ckan_integration/test_dataset_is_updated_correctly.yaml
@@ -18,7 +18,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['127']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:50 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:02 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -110,7 +110,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['5727']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:50 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:02 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -158,13 +158,13 @@ interactions:
       {\"type\": \"string\", \"description\": \"Clase de la convocatoria.\", \"title\":
       \"clase_convocatoria\"}, {\"type\": \"string\", \"description\": \"Objeto/objetivo
       de la convocatoria\", \"title\": \"objeto_convocatoria\"}]", "created": "2016-04-14T22:48:05.433640",
-      "last_modified": "2016-04-19T22:48:05.433640", "size": 5120, "id": "datosargentina_99db6631-d1c9-470b-a73e-c62daa32c777_1.1",
+      "last_modified": "2016-04-19T22:48:05.433640", "size": 5120, "id": "datosargentina_1.1",
       "name": "Convocatorias abiertas durante el a\u00f1o 2015"}]}'
     headers:
       Accept: ['*/*']
       Accept-Encoding: ['gzip, deflate']
       Connection: [keep-alive]
-      Content-Length: ['4033']
+      Content-Length: ['3996']
       Content-Type: [application/json]
       User-Agent: ['ckanapi/4.0 (+https://github.com/ckan/ckanapi)']
     method: POST
@@ -178,7 +178,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['195']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:50 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:02 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 404, message: Not Found}
@@ -226,13 +226,13 @@ interactions:
       {\"type\": \"string\", \"description\": \"Clase de la convocatoria.\", \"title\":
       \"clase_convocatoria\"}, {\"type\": \"string\", \"description\": \"Objeto/objetivo
       de la convocatoria\", \"title\": \"objeto_convocatoria\"}]", "created": "2016-04-14T22:48:05.433640",
-      "last_modified": "2016-04-19T22:48:05.433640", "size": 5120, "id": "datosargentina_99db6631-d1c9-470b-a73e-c62daa32c777_1.1",
+      "last_modified": "2016-04-19T22:48:05.433640", "size": 5120, "id": "datosargentina_1.1",
       "name": "Convocatorias abiertas durante el a\u00f1o 2015"}]}'
     headers:
       Accept: ['*/*']
       Accept-Encoding: ['gzip, deflate']
       Connection: [keep-alive]
-      Content-Length: ['4033']
+      Content-Length: ['3996']
       Content-Type: [application/json]
       User-Agent: ['ckanapi/4.0 (+https://github.com/ckan/ckanapi)']
     method: POST
@@ -244,7 +244,7 @@ interactions:
         Administrativa. Oficina Nacional de Contrataciones. Direcci\u00f3n de Compras
         Electr\u00f3nicas.", "relationships_as_object": [], "private": false, "maintainer_email":
         "onc-compraselectronicas@modernizacion.gob.ar", "num_tags": 4, "id": "datosargentina_99db6631-d1c9-470b-a73e-c62daa32c777",
-        "metadata_created": "2018-02-07T15:48:50.714711", "metadata_modified": "2018-02-07T15:48:50.735207",
+        "metadata_created": "2018-02-08T18:34:02.702307", "metadata_modified": "2018-02-08T18:34:02.725005",
         "author": "Ministerio de Modernizaci\u00f3n. Secretar\u00eda de Modernizaci\u00f3n
         Administrativa. Oficina Nacional de Contrataciones", "author_email": "onc@modernizacion.gob.ar",
         "state": "active", "version": null, "creator_user_id": "824dc36b-38b0-448d-bcb2-dda225089ba2",
@@ -272,15 +272,15 @@ interactions:
         \"clase_convocatoria\"}, {\"type\": \"string\", \"description\": \"Objeto/objetivo
         de la convocatoria\", \"title\": \"objeto_convocatoria\"}]", "package_id":
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diff --git a/tests/cassetes/ckan_integration/test_groups_are_created.yaml b/tests/cassetes/ckan_integration/test_groups_are_created.yaml
index 15b8191..56db79a 100644
--- a/tests/cassetes/ckan_integration/test_groups_are_created.yaml
+++ b/tests/cassetes/ckan_integration/test_groups_are_created.yaml
@@ -18,7 +18,7 @@ interactions:
       connection: [keep-alive]
       content-length: ['107']
       content-type: [application/json;charset=utf-8]
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@@ -41,7 +41,7 @@ interactions:
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       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:51 GMT']
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@@ -61,20 +61,20 @@ interactions:
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-        "num_followers": 0, "id": "68d64483-9323-47da-80a7-bc874747179f", "tags":
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+        "num_followers": 0, "id": "d9680d0a-7cca-4df9-b130-12bd51c62f38", "tags":
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     headers:
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       connection: [keep-alive]
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+      content-length: ['932']
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+      date: ['Thu, 08 Feb 2018 18:34:03 GMT']
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@@ -166,7 +166,7 @@ interactions:
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       content-length: ['5727']
       content-type: [application/json;charset=utf-8]
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+      date: ['Thu, 08 Feb 2018 18:34:03 GMT']
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@@ -214,13 +214,13 @@ interactions:
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       Accept-Encoding: ['gzip, deflate']
       Connection: [keep-alive]
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@@ -234,7 +234,7 @@ interactions:
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       content-length: ['195']
       content-type: [application/json;charset=utf-8]
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@@ -282,13 +282,13 @@ interactions:
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@@ -300,7 +300,7 @@ interactions:
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-        "metadata_created": "2018-02-07T15:48:52.018918", "metadata_modified": "2018-02-07T15:48:52.041288",
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@@ -360,13 +360,13 @@ interactions:
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         {"key": "temporal", "value": "2015-01-01/2015-12-31"}], "title": "Sistema
-        de contrataciones electr\u00f3nicas", "revision_id": "3fc24bf6-c3dc-4801-8e2c-5233775911fb"}}'}
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diff --git a/tests/cassetes/ckan_integration/test_resources_swapped_correctly.yaml b/tests/cassetes/ckan_integration/test_resources_swapped_correctly.yaml
index 671efd5..55e9f91 100644
--- a/tests/cassetes/ckan_integration/test_resources_swapped_correctly.yaml
+++ b/tests/cassetes/ckan_integration/test_resources_swapped_correctly.yaml
@@ -18,7 +18,7 @@ interactions:
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       content-length: ['127']
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+      date: ['Thu, 08 Feb 2018 18:34:04 GMT']
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+      date: ['Thu, 08 Feb 2018 18:34:04 GMT']
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@@ -158,13 +158,13 @@ interactions:
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       Accept-Encoding: ['gzip, deflate']
       Connection: [keep-alive]
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@@ -178,7 +178,7 @@ interactions:
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       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:52 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:04 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 404, message: Not Found}
@@ -226,13 +226,13 @@ interactions:
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       Accept-Encoding: ['gzip, deflate']
       Connection: [keep-alive]
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       User-Agent: ['ckanapi/4.0 (+https://github.com/ckan/ckanapi)']
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@@ -244,7 +244,7 @@ interactions:
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-        "metadata_created": "2018-02-07T15:48:52.823168", "metadata_modified": "2018-02-07T15:48:52.844775",
+        "metadata_created": "2018-02-08T18:34:04.754153", "metadata_modified": "2018-02-08T18:34:04.775535",
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@@ -272,15 +272,15 @@ interactions:
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+        null, "datastore_active": false, "id": "same-catalog-id_1.1", "size": "5120",
+        "state": "active", "accessURL": "http://datos.gob.ar/dataset/sistema-de-contrataciones-electronicas-argentina-compra/archivo/fa3603b3-0af7-43cc-9da9-90a512217d8a",
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@@ -289,7 +289,7 @@ interactions:
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-        de contrataciones electr\u00f3nicas", "revision_id": "1aa25125-adf7-4453-9eff-03e90f071c9f"}}'}
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@@ -1577,7 +1574,7 @@ interactions:
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         "2016-10-18T17:26:58.415087", "url": "http://datos.jus.gob.ar/dataset/d9a963ea-8b1d-4ca3-9dd9-07a4773e8c23/resource/f9170086-6538-44f1-8c7e-3e193c1fea7f/download/basecomplementariainfolegnormasmodificatorias.csv",
         "webstore_url": null, "mimetype_inner": null, "position": 2, "revision_id":
-        "a5bf1ad0-a066-41dd-9734-658b39515701", "resource_type": null}], "num_resources":
+        "649ba4b6-4748-4e24-aa85-12a0e157fd2a", "resource_type": null}], "num_resources":
         3, "tags": [{"vocabulary_id": null, "state": "active", "display_name": "bienes",
         "id": "7cacc193-5776-46b3-8f31-ccc52042248f", "name": "bienes"}, {"vocabulary_id":
         null, "state": "active", "display_name": "compras", "id": "27e042d0-87b8-416e-9745-8b504dc182e0",
@@ -1586,7 +1583,7 @@ interactions:
         {"vocabulary_id": null, "state": "active", "display_name": "convocatorias",
         "id": "a7cf30d4-d35a-433a-914f-47727d61b6f7", "name": "convocatorias"}], "groups":
         [{"display_name": "econ", "description": "", "image_display_url": "", "title":
-        "", "id": "68d64483-9323-47da-80a7-bc874747179f", "name": "econ"}], "license_id":
+        "", "id": "d9680d0a-7cca-4df9-b130-12bd51c62f38", "name": "econ"}], "license_id":
         "notspecified", "relationships_as_subject": [], "organization": {"description":
         "", "created": "2018-02-07T15:37:27.733652", "title": "oficina-de-muestra",
         "name": "oficina-de-muestra", "is_organization": true, "state": "active",
@@ -1601,13 +1598,13 @@ interactions:
         "[\"spa\"]"}, {"key": "modified", "value": "2016-04-19T19:48:05.433640-03:00"},
         {"key": "spatial", "value": "ARG"}, {"key": "super_theme", "value": "[\"econ\"]"},
         {"key": "temporal", "value": "2015-01-01/2015-12-31"}], "title": "Sistema
-        de contrataciones electr\u00f3nicas", "revision_id": "1aa25125-adf7-4453-9eff-03e90f071c9f"}}'}
+        de contrataciones electr\u00f3nicas", "revision_id": "5ccbddba-de69-4dd5-8f60-69bbb17920ee"}}'}
     headers:
       cache-control: [no-cache]
       connection: [keep-alive]
-      content-length: ['11551']
+      content-length: ['11440']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:55 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:06 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
@@ -1630,7 +1627,7 @@ interactions:
         del Sistema Argentino de Informaci\u00f3n Jur\u00eddica", "relationships_as_object":
         [], "private": false, "maintainer_email": "datosabiertos@saij.gob.ar", "num_tags":
         9, "id": "same-catalog-id_d9a963ea-8b1d-4ca3-9dd9-07a4773e8c23", "metadata_created":
-        "2018-02-07T15:48:53.420868", "metadata_modified": "2018-02-07T15:48:54.929406",
+        "2018-02-08T18:34:05.284899", "metadata_modified": "2018-02-08T18:34:06.413914",
         "author": "Ministerio de Justicia y Derechos Humanos. Secretar\u00eda de Planificaci\u00f3n
         Estrat\u00e9gica. Direcci\u00f3n Nacional del Sistema Argentino de Informaci\u00f3n
         Jur\u00eddica", "author_email": "datosabiertos@saij.gob.ar", "state": "active",
@@ -1659,15 +1656,15 @@ interactions:
         \"clase_convocatoria\"}, {\"type\": \"string\", \"description\": \"Objeto/objetivo
         de la convocatoria\", \"title\": \"objeto_convocatoria\"}]", "package_id":
         "same-catalog-id_d9a963ea-8b1d-4ca3-9dd9-07a4773e8c23", "webstore_last_updated":
-        null, "datastore_active": false, "id": "same-catalog-id_d9a963ea-8b1d-4ca3-9dd9-07a4773e8c23_1.1",
-        "size": "5120", "state": "active", "accessURL": "http://datos.gob.ar/dataset/sistema-de-contrataciones-electronicas-argentina-compra/archivo/fa3603b3-0af7-43cc-9da9-90a512217d8a",
+        null, "datastore_active": false, "id": "same-catalog-id_1.1", "size": "5120",
+        "state": "active", "accessURL": "http://datos.gob.ar/dataset/sistema-de-contrataciones-electronicas-argentina-compra/archivo/fa3603b3-0af7-43cc-9da9-90a512217d8a",
         "hash": "", "description": "Listado de las convocatorias abiertas durante
         el a\u00f1o 2015 en el sistema de contrataciones electr\u00f3nicas", "format":
         "CSV", "last_modified": "2016-04-19T22:48:05.433640", "url_type": null, "mimetype":
         "text/csv", "cache_url": null, "name": "Convocatorias abiertas durante el
         a\u00f1o 2015", "created": "2016-04-14T22:48:05.433640", "url": "http://186.33.211.253/dataset/99db6631-d1c9-470b-a73e-c62daa32c420/resource/4b7447cb-31ff-4352-96c3-589d212e1cc9/download/convocatorias-abiertas-anio-2015.csv",
         "webstore_url": null, "mimetype_inner": null, "position": 0, "revision_id":
-        "b57ed709-992a-41d9-811e-32ebc4c596be", "resource_type": null}], "num_resources":
+        "eb6e9501-8c1f-4b55-9904-e001910be0fd", "resource_type": null}], "num_resources":
         1, "tags": [{"vocabulary_id": null, "state": "active", "display_name": "acordadas",
         "id": "a843f06d-1215-4b68-9946-958cbd67cc39", "name": "acordadas"}, {"vocabulary_id":
         null, "state": "active", "display_name": "administrativas", "id": "33f302e5-4b3c-4ee8-9d9a-1066c83e7af7",
@@ -1684,7 +1681,7 @@ interactions:
         "9b182d6f-c93a-4c52-8f7c-d9584fd1c581", "name": "leyes"}, {"vocabulary_id":
         null, "state": "active", "display_name": "resoluciones", "id": "8b591b18-3fa2-42d7-a7f9-4178a380ce33",
         "name": "resoluciones"}], "groups": [{"display_name": "just", "description":
-        "", "image_display_url": "", "title": "", "id": "548bc2a4-9f80-4bbc-874b-32a4dc207558",
+        "", "image_display_url": "", "title": "", "id": "3696757d-30f7-42ee-9b9c-93036a7ec2ce",
         "name": "just"}], "license_id": "odc-odbl", "relationships_as_subject": [],
         "organization": {"description": "", "created": "2018-02-07T15:37:27.733652",
         "title": "oficina-de-muestra", "name": "oficina-de-muestra", "is_organization":
@@ -1700,13 +1697,13 @@ interactions:
         "value": "R/P1M"}, {"key": "issued", "value": "2016-09-05T18:25:21.249967"},
         {"key": "modified", "value": "2016-12-19T18:19:32.496552"}, {"key": "super_theme",
         "value": "[\"JUST\"]"}], "license_url": "http://www.opendefinition.org/licenses/odc-odbl",
-        "title": "Base de datos legislativos Infoleg", "revision_id": "c909ff98-1b1e-4bf1-a270-2be1a97c91c5"}}'}
+        "title": "Base de datos legislativos Infoleg", "revision_id": "b4dbd4f6-8d45-4192-9139-56084ea02b77"}}'}
     headers:
       cache-control: [no-cache]
       connection: [keep-alive]
-      content-length: ['6770']
+      content-length: ['6733']
       content-type: [application/json;charset=utf-8]
-      date: ['Wed, 07 Feb 2018 15:48:55 GMT']
+      date: ['Thu, 08 Feb 2018 18:34:06 GMT']
       pragma: [no-cache]
       server: [nginx/1.11.9]
     status: {code: 200, message: OK}
diff --git a/tests/test_ckan_integration.py b/tests/test_ckan_integration.py
index f8c5b44..f59da51 100644
--- a/tests/test_ckan_integration.py
+++ b/tests/test_ckan_integration.py
@@ -18,7 +18,7 @@
 class FederationTestCase(unittest.TestCase):
     
     portal_url = 'http://181.209.63.239'
-    apikey = 'an_apikey'
+    apikey = 'una_apikey'
 
     @classmethod
     def get_sample(cls, sample_filename):
@@ -110,8 +110,7 @@ def test_resources_swapped_correctly(self):
         full_package_id = push_dataset_to_ckan(self.full_catalog, catalog_id, 'oficina-de-muestra', full_dataset_id,
                                                self.portal_url, self.apikey)
         justice_package_id = push_dataset_to_ckan(self.justice_catalog, catalog_id, 'oficina-de-muestra',
-                                                  justice_dataset_id, self.portal_url,
-                                                  self.apikey)
+                                                  justice_dataset_id, self.portal_url, self.apikey)
         # Switch them back
         full_dataset['distribution'], justice_dataset['distribution'] = \
             justice_dataset['distribution'], full_dataset['distribution']
@@ -125,17 +124,7 @@ def test_resources_swapped_correctly(self):
         self.assertEqual(len(justice_package['resources']), len(full_dataset['distribution']))
 
         for resource, justice_distribution in zip(full_package['resources'], justice_dataset['distribution']):
-            self.assertEqual('same-catalog-id_'+full_dataset_id+'_'+justice_distribution['identifier'],
-                             resource['id'])
+            self.assertEqual('same-catalog-id_'+justice_distribution['identifier'], resource['id'])
 
         for resource, full_distribution in zip(justice_package['resources'], full_dataset['distribution']):
-            self.assertEqual('same-catalog-id_'+justice_dataset_id+'_'+full_distribution['identifier'],
-                             resource['id'])
-
-    def test_invalid_catalogs_are_rejected(self):
-        invalid_sample = self.get_sample('missing_catalog_description.json')
-        invalid_catalog = pydatajson.DataJson(invalid_sample)
-        invalida_dataset_id = invalid_catalog.datasets[0]['identifier']
-        with self.assertRaises(ValueError):
-            push_dataset_to_ckan(invalid_catalog, 'invalid', 'oficina-de-muestra', invalida_dataset_id,
-                                 self.portal_url, self.apikey)
+            self.assertEqual('same-catalog-id_'+full_distribution['identifier'], resource['id'])
diff --git a/tests/test_ckan_utils.py b/tests/test_ckan_utils.py
index 6e7303a..fdf9469 100644
--- a/tests/test_ckan_utils.py
+++ b/tests/test_ckan_utils.py
@@ -10,7 +10,6 @@
 
 
 class DatasetConversionTestCase(unittest.TestCase):
-    sample = 'full_data.json'
 
     @classmethod
     def get_sample(cls, sample_filename):
@@ -18,10 +17,10 @@ def get_sample(cls, sample_filename):
 
     @classmethod
     def setUpClass(cls):
-        cls.catalog = pydatajson.DataJson(cls.get_sample(cls.sample))
+        cls.catalog = pydatajson.DataJson(cls.get_sample('full_data.json'))
         cls.catalog_id = cls.catalog.get('identifier', re.sub(r'[^a-z-_]+', '', cls.catalog['title'].lower()))
         cls.dataset = cls.catalog.datasets[0]
-        cls.dataset_id = cls.dataset['identifier']
+        cls.dataset_id = cls.dataset.get('identifier')
         cls.distributions = cls.dataset['distribution']
 
     def test_replicated_plain_attributes_are_corrext(self):
diff --git a/tests/test_federation.py b/tests/test_federation.py
index 93fbb8a..f4bea7b 100644
--- a/tests/test_federation.py
+++ b/tests/test_federation.py
@@ -53,12 +53,14 @@ def test_id_is_updated_correctly(self, mock_portal):
         def mock_call_action(action, data_dict=None):
             if action == 'package_update':
                 return {'id': data_dict['id']}
+            if action == 'package_create':
+                self.fail('should not be called')
             else:
                 return []
         mock_portal.return_value.call_action = mock_call_action
         res_id = push_dataset_to_ckan(self.catalog, self.catalog_id, 'owner',
                                       self.dataset['identifier'], 'portal', 'key')
-        self.assertEqual(self.catalog_id+'_'+self.dataset_id, res_id, res_id)
+        self.assertEqual(self.catalog_id+'_'+self.dataset_id, res_id)
 
     @patch('pydatajson.federation.RemoteCKAN', autospec=True)
     def test_new_groups_are_created(self, mock_portal):
@@ -120,10 +122,3 @@ def mock_call_action(action, data_dict=None):
         mock_portal.return_value.call_action = mock_call_action
         push_dataset_to_ckan(self.minimum_catalog, self.minimum_catalog_id, 'owner',
                              self.minimum_dataset['identifier'], 'portal', 'key')
-
-    def test_invalid_catalogs_are_rejected(self):
-        invalid_sample = self.get_sample('missing_catalog_description.json')
-        invalid_catalog = pydatajson.DataJson(invalid_sample)
-        invalid_dataset_id = invalid_catalog.datasets[0]['identifier']
-        with self.assertRaises(ValueError):
-            push_dataset_to_ckan(invalid_catalog, self.catalog_id, 'owner', invalid_dataset_id, 'portal', 'key')