[DOCS] Consolidates info for mapped case fields

docs/cases/cases-ui-integrations.asciidoc

@@ -34,6 +34,43 @@ image::images/cases-ui-connector.png[Shows the page for creating connectors]
 - {kibana-ref}/swimlane-action-type.html[{swimlane} connector]
 - {kibana-ref}/cases-webhook-action-type.html[{webhook-cm} connector]
 
+[float]
+[[mapped-case-fields]]
+=== Mapped case fields
+
+When you export an {elastic-sec} case to an external system, case fields are mapped to existing fields in {sn}, {jira}, {ibm-r}, and {swimlane}. For the {webhook-cm} connector, case fields can be mapped to custom or pre-existing fields in the external system you're connecting to.
+
+Once fields are mapped, you can push updates to external systems, and mapped fields are overwritten or appended. Retrieving data from external systems is not supported.
+
+|===
+
+| *Case field* | *Mapped field*
+
+| Title
+
+a| The case `Title` field is mapped to corresponding fields in external systems. Mapped field values are overwritten when you push updates.
+
+* *{sn}*: `Short description`
+* *{jira}*: `Summary`
+* *{ibm-r}*: `Name`
+* *{swimlane}*: `Description`
+
+| Description
+| The case `Description` field is mapped to the `Description` field in all systems. Mapped field values are overwritten when you push updates.
+
+| Comments
+
+a| The case `Comments` field is mapped to corresponding fields in external systems.
+
+* *{sn}*: `Work Notes`
+* *{jira}*: `Comments`
+* *{ibm-r}*: `Comments`
+* *{swimlane}*: `Comments`
+
+New and edited comments are added to incident records when pushed to {sn}, {jira}, or {ibm-r}. Comments pushed to {swimlane} are appended to the `Comment` field in {swimlane} and posted individually.
+
+|===
+
 [[close-connector]]
 [float]
 [[close-sent-cases]]