From 6f746e69ff0f59b46f7dfc1dcfffb4c5c1e3b08a Mon Sep 17 00:00:00 2001
From: youssef <youssef.bsf@gmail.com>
Date: Wed, 13 Aug 2025 03:12:27 +0100
Subject: [PATCH 1/8] Missena: Update adapter parameters

- Rename TestMode to Sample for better clarity
- Add APIKey field to UserParams struct
---
 adapters/missena/missena.go | 6 ++++--
 openrtb_ext/imp_missena.go  | 2 +-
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/adapters/missena/missena.go b/adapters/missena/missena.go
index 1519cb4180e..adb18076699 100644
--- a/adapters/missena/missena.go
+++ b/adapters/missena/missena.go
@@ -50,9 +50,10 @@ type BidServerResponse struct {
 }
 
 type UserParams struct {
+	APIKey    string         `json:"apiKey,omitempty"`
 	Formats   []string       `json:"formats,omitempty"`
 	Placement string         `json:"placement,omitempty" default:"sticky"`
-	TestMode  string         `json:"test,omitempty"`
+	Sample    string         `json:"sample,omitempty"`
 	Settings  map[string]any `json:"settings,omitempty"`
 }
 
@@ -162,9 +163,10 @@ func (a *adapter) makeRequest(imp openrtb2.Imp, request *openrtb2.BidRequest, re
 		SChain:           schain,
 		Timeout:          request.TMax,
 		UserParams: UserParams{
+			APIKey:    params.APIKey,
 			Formats:   params.Formats,
 			Placement: params.Placement,
-			TestMode:  params.TestMode,
+			Sample:    params.Sample,
 			Settings:  params.Settings,
 		},
 		Version: version.Ver,
diff --git a/openrtb_ext/imp_missena.go b/openrtb_ext/imp_missena.go
index 6884209b7fe..ac4a7223418 100644
--- a/openrtb_ext/imp_missena.go
+++ b/openrtb_ext/imp_missena.go
@@ -4,6 +4,6 @@ type ExtImpMissena struct {
 	APIKey    string         `json:"apiKey"`
 	Formats   []string       `json:"formats"`
 	Placement string         `json:"placement"`
-	TestMode  string         `json:"test"`
+	Sample    string         `json:"sample"`
 	Settings  map[string]any `json:"settings,omitempty"`
 }

From 306957fb58d871195805cdd0b5fd8f6dc73df742 Mon Sep 17 00:00:00 2001
From: youssef <youssef.bsf@gmail.com>
Date: Wed, 1 Oct 2025 14:56:44 +0100
Subject: [PATCH 2/8] Missena: Introduce versioning and update example
 configurations

---
 .claude/settings.local.json                              | 8 ++++++++
 adapters/missena/missena.go                              | 9 ++++++++-
 .../missenatest/exemplary/bid-floor-currency.json        | 2 ++
 .../missena/missenatest/exemplary/multiple-imps.json     | 7 ++++---
 .../missenatest/exemplary/simple-banner-ipv6.json        | 7 ++++---
 .../missena/missenatest/exemplary/simple-banner.json     | 4 +++-
 .../missenatest/exemplary/valid-imp-error-imp.json       | 7 ++++---
 .../missena/missenatest/supplemental/status-204.json     | 7 ++++---
 .../missena/missenatest/supplemental/status-400.json     | 4 +++-
 .../missena/missenatest/supplemental/status-not-200.json | 7 ++++---
 10 files changed, 44 insertions(+), 18 deletions(-)
 create mode 100644 .claude/settings.local.json

diff --git a/.claude/settings.local.json b/.claude/settings.local.json
new file mode 100644
index 00000000000..05724086d7e
--- /dev/null
+++ b/.claude/settings.local.json
@@ -0,0 +1,8 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(go test:*)"
+    ],
+    "deny": []
+  }
+}
\ No newline at end of file
diff --git a/adapters/missena/missena.go b/adapters/missena/missena.go
index adb18076699..2b4b3a84d33 100644
--- a/adapters/missena/missena.go
+++ b/adapters/missena/missena.go
@@ -75,6 +75,13 @@ func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server co
 	return bidder, nil
 }
 
+func getVersionString() string {
+	if version.Ver == "" {
+		return version.VerUnknown
+	}
+	return version.Ver
+}
+
 func getCurrency(currencies []string) (string, error) {
 	eurAvailable := false
 	for _, cur := range currencies {
@@ -169,7 +176,7 @@ func (a *adapter) makeRequest(imp openrtb2.Imp, request *openrtb2.BidRequest, re
 			Sample:    params.Sample,
 			Settings:  params.Settings,
 		},
-		Version: version.Ver,
+		Version: fmt.Sprintf("prebid-server@%s", getVersionString()),
 	}
 
 	body, err := jsonutil.Marshal(missenaRequest)
diff --git a/adapters/missena/missenatest/exemplary/bid-floor-currency.json b/adapters/missena/missenatest/exemplary/bid-floor-currency.json
index d7c610804b7..72907d535c0 100644
--- a/adapters/missena/missenatest/exemplary/bid-floor-currency.json
+++ b/adapters/missena/missenatest/exemplary/bid-floor-currency.json
@@ -56,7 +56,9 @@
                     "referer_canonical": "publisher.com",
                     "request_id": "test-request-id",
                     "timeout": 500,
+                    "version": "prebid-server@unknown",
                     "params": {
+                        "apiKey": "test-api-key",
                         "formats": ["banner"],
                         "placement": "sticky"
                     }
diff --git a/adapters/missena/missenatest/exemplary/multiple-imps.json b/adapters/missena/missenatest/exemplary/multiple-imps.json
index 285cda26138..5169497f03d 100644
--- a/adapters/missena/missenatest/exemplary/multiple-imps.json
+++ b/adapters/missena/missenatest/exemplary/multiple-imps.json
@@ -82,13 +82,14 @@
           "currency": "EUR",
           "ik": "test-request-id",
           "params": {
-            "placement": "test-placement-1",
-            "test": "1"
+            "apiKey": "test-api-key",
+            "placement": "test-placement-1"
           },
           "referer": "https://example.com/page",
           "referer_canonical": "example.com",
           "request_id": "test-request-id",
-          "timeout": 500
+          "timeout": 500,
+          "version": "prebid-server@unknown"
         },
         "impIDs": ["test-imp-id-1"]
       },
diff --git a/adapters/missena/missenatest/exemplary/simple-banner-ipv6.json b/adapters/missena/missenatest/exemplary/simple-banner-ipv6.json
index edd3197c45f..9110244652d 100644
--- a/adapters/missena/missenatest/exemplary/simple-banner-ipv6.json
+++ b/adapters/missena/missenatest/exemplary/simple-banner-ipv6.json
@@ -58,13 +58,14 @@
           "currency": "EUR",
           "ik": "test-request-id",
           "params": {
-            "placement": "test-placement",
-            "test": "1"
+            "apiKey": "test-api-key",
+            "placement": "test-placement"
           },
           "referer": "https://example.com/page",
           "referer_canonical": "example.com",
           "request_id": "test-request-id",
-          "timeout": 500
+          "timeout": 500,
+          "version": "prebid-server@unknown"
         },
         "impIDs": ["test-imp-id"]
       },
diff --git a/adapters/missena/missenatest/exemplary/simple-banner.json b/adapters/missena/missenatest/exemplary/simple-banner.json
index f995b4634a0..8c87f8d0db2 100644
--- a/adapters/missena/missenatest/exemplary/simple-banner.json
+++ b/adapters/missena/missenatest/exemplary/simple-banner.json
@@ -57,12 +57,14 @@
           "currency": "EUR",
           "ik": "test-request-id",
           "params": {
+            "apiKey": "test-api-key",
             "placement": "test-placement"
           },
           "referer": "https://example.com/page",
           "referer_canonical": "example.com",
           "request_id": "test-request-id",
-          "timeout": 500
+          "timeout": 500,
+          "version": "prebid-server@unknown"
         },
         "impIDs": ["test-imp-id"]
       },
diff --git a/adapters/missena/missenatest/exemplary/valid-imp-error-imp.json b/adapters/missena/missenatest/exemplary/valid-imp-error-imp.json
index 285cda26138..5169497f03d 100644
--- a/adapters/missena/missenatest/exemplary/valid-imp-error-imp.json
+++ b/adapters/missena/missenatest/exemplary/valid-imp-error-imp.json
@@ -82,13 +82,14 @@
           "currency": "EUR",
           "ik": "test-request-id",
           "params": {
-            "placement": "test-placement-1",
-            "test": "1"
+            "apiKey": "test-api-key",
+            "placement": "test-placement-1"
           },
           "referer": "https://example.com/page",
           "referer_canonical": "example.com",
           "request_id": "test-request-id",
-          "timeout": 500
+          "timeout": 500,
+          "version": "prebid-server@unknown"
         },
         "impIDs": ["test-imp-id-1"]
       },
diff --git a/adapters/missena/missenatest/supplemental/status-204.json b/adapters/missena/missenatest/supplemental/status-204.json
index 469abdf618f..fd5b2de433e 100644
--- a/adapters/missena/missenatest/supplemental/status-204.json
+++ b/adapters/missena/missenatest/supplemental/status-204.json
@@ -58,13 +58,14 @@
           "currency": "EUR",
           "ik": "test-request-id",
           "params": {
-            "placement": "test-placement",
-            "test": "1"
+            "apiKey": "test-api-key",
+            "placement": "test-placement"
           },
           "referer": "https://example.com/page",
           "referer_canonical": "example.com",
           "request_id": "test-request-id",
-          "timeout": 500
+          "timeout": 500,
+          "version": "prebid-server@unknown"
         },
         "impIDs": ["test-imp-id"]
       },
diff --git a/adapters/missena/missenatest/supplemental/status-400.json b/adapters/missena/missenatest/supplemental/status-400.json
index b6fbda5924c..64032f8059a 100644
--- a/adapters/missena/missenatest/supplemental/status-400.json
+++ b/adapters/missena/missenatest/supplemental/status-400.json
@@ -57,12 +57,14 @@
           "currency": "EUR",
           "ik": "test-request-id",
           "params": {
+            "apiKey": "test-api-key",
             "placement": "test-placement"
           },
           "referer": "https://example.com/page",
           "referer_canonical": "example.com",
           "request_id": "test-request-id",
-          "timeout": 500
+          "timeout": 500,
+          "version": "prebid-server@unknown"
         },
         "impIDs": ["test-imp-id"]
       },
diff --git a/adapters/missena/missenatest/supplemental/status-not-200.json b/adapters/missena/missenatest/supplemental/status-not-200.json
index afa2a7f94b9..417fe4141dc 100644
--- a/adapters/missena/missenatest/supplemental/status-not-200.json
+++ b/adapters/missena/missenatest/supplemental/status-not-200.json
@@ -58,13 +58,14 @@
           "currency": "EUR",
           "ik": "test-request-id",
           "params": {
-            "placement": "test-placement",
-            "test": "1"
+            "apiKey": "test-api-key",
+            "placement": "test-placement"
           },
           "referer": "https://example.com/page",
           "referer_canonical": "example.com",
           "request_id": "test-request-id",
-          "timeout": 500
+          "timeout": 500,
+          "version": "prebid-server@unknown"
         },
         "impIDs": ["test-imp-id"]
       },

From cf997ab42e612cc6b357757c9a656bdbc968fd08 Mon Sep 17 00:00:00 2001
From: youssef <youssef.bsf@gmail.com>
Date: Wed, 1 Oct 2025 15:03:26 +0100
Subject: [PATCH 3/8] Update bid-floor-currency.json to include apiKey and
 version fields

---
 .../missena/missenatest/exemplary/bid-floor-currency.json     | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/adapters/missena/missenatest/exemplary/bid-floor-currency.json b/adapters/missena/missenatest/exemplary/bid-floor-currency.json
index 940a2451d88..a2601c35bfc 100644
--- a/adapters/missena/missenatest/exemplary/bid-floor-currency.json
+++ b/adapters/missena/missenatest/exemplary/bid-floor-currency.json
@@ -88,9 +88,11 @@
           "request_id": "test-request-id",
           "timeout": 500,
           "params": {
+            "apiKey": "test-api-key",
             "formats": ["banner"],
             "placement": "sticky"
-          }
+          },
+          "version": "prebid-server@unknown"
         },
         "impIDs": ["test-imp-id"]
       },

From 7a9e08816204bd86a10d2f2a9c56318a257d9981 Mon Sep 17 00:00:00 2001
From: youssef <youssef.bsf@gmail.com>
Date: Wed, 1 Oct 2025 15:05:27 +0100
Subject: [PATCH 4/8] Remove unnecessary files

---
 .claude/settings.local.json | 8 --------
 1 file changed, 8 deletions(-)
 delete mode 100644 .claude/settings.local.json

diff --git a/.claude/settings.local.json b/.claude/settings.local.json
deleted file mode 100644
index 05724086d7e..00000000000
--- a/.claude/settings.local.json
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  "permissions": {
-    "allow": [
-      "Bash(go test:*)"
-    ],
-    "deny": []
-  }
-}
\ No newline at end of file

From b993ce7dec87638c27b4993963a98e554c0aa3ca Mon Sep 17 00:00:00 2001
From: youssef <youssef.bsf@gmail.com>
Date: Tue, 28 Oct 2025 16:52:04 +0100
Subject: [PATCH 5/8] Missena: Add Debug flag and EIDs handling to ad request

---
 adapters/missena/missena.go | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/adapters/missena/missena.go b/adapters/missena/missena.go
index c0c0ed2c279..4600922ca0d 100644
--- a/adapters/missena/missena.go
+++ b/adapters/missena/missena.go
@@ -24,6 +24,7 @@ type MissenaAdRequest struct {
 	Adunit         string               `json:"adunit,omitempty"`
 	BuyerUID       string               `json:"buyeruid,omitempty"`
 	Currency       string               `json:"currency,omitempty"`
+	Debug          bool                 `json:"debug,omitempty"`
 	EIDs           []openrtb2.EID       `json:"userEids,omitempty"`
 	Floor          float64              `json:"floor,omitempty"`
 	FloorCurrency  string               `json:"floor_currency,omitempty"`
@@ -122,9 +123,18 @@ func (a *adapter) makeRequest(imp openrtb2.Imp, request *openrtb2.BidRequest, re
 		}
 	}
 
+	var eids []openrtb2.EID
+	if request.User != nil && request.User.Ext != nil {
+		var extUser openrtb_ext.ExtUser
+		if err := jsonutil.Unmarshal(request.User.Ext, &extUser); err == nil {
+			eids = extUser.Eids
+		}
+	}
+
 	missenaRequest := MissenaAdRequest{
 		Adunit:         imp.ID,
 		Currency:       cur,
+		Debug:          request.Test == 1,
 		Floor:          floor,
 		FloorCurrency:  floorCur,
 		IdempotencyKey: request.ID,
@@ -138,6 +148,7 @@ func (a *adapter) makeRequest(imp openrtb2.Imp, request *openrtb2.BidRequest, re
 			Sample:    params.Sample,
 			Settings:  params.Settings,
 		},
+		EIDs:    eids,
 		Version: fmt.Sprintf("prebid-server@%s", getVersionString()),
 	}
 

From e858fe1a5f2abf7c0742d4ae832b4702ff9c977b Mon Sep 17 00:00:00 2001
From: youssef <youssef.bsf@gmail.com>
Date: Mon, 12 Jan 2026 19:44:20 +0100
Subject: [PATCH 6/8] Missena: Add test coverage for sample field and update
 schema

- Add JSON test file for sample field in exemplary tests
- Update missena.json schema to rename test to sample
- Update params_test.go to use sample instead of test
---
 .../exemplary/simple-banner-with-sample.json  | 137 ++++++++++++++++++
 adapters/missena/params_test.go               |   6 +-
 static/bidder-params/missena.json             |   4 +-
 3 files changed, 142 insertions(+), 5 deletions(-)
 create mode 100644 adapters/missena/missenatest/exemplary/simple-banner-with-sample.json

diff --git a/adapters/missena/missenatest/exemplary/simple-banner-with-sample.json b/adapters/missena/missenatest/exemplary/simple-banner-with-sample.json
new file mode 100644
index 00000000000..4406bf98b21
--- /dev/null
+++ b/adapters/missena/missenatest/exemplary/simple-banner-with-sample.json
@@ -0,0 +1,137 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "tmax": 500,
+    "at": 1,
+    "cur": ["EUR"],
+    "regs": {
+      "ext": {
+        "gdpr": 1
+      }
+    },
+    "user": {
+      "ext": {
+        "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+      }
+    },
+    "device": {
+      "ip": "123.123.123.123",
+      "ua": "test-user-agent"
+    },
+    "site": {
+      "page": "https://example.com/page",
+      "domain": "example.com"
+    },
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "h": 50,
+          "w": 320
+        },
+        "ext": {
+          "bidder": {
+            "apiKey": "test-api-key",
+            "placement": "test-placement",
+            "sample": "test-sample-value"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://example.com/?t=test-api-key",
+        "headers": {
+          "Content-Type": ["application/json;charset=utf-8"],
+          "Accept": ["application/json"],
+          "User-Agent": ["test-user-agent"],
+          "X-Forwarded-For": ["123.123.123.123"],
+          "Referer": ["https://example.com/page"],
+          "Origin": ["https://example.com"]
+        },
+        "body": {
+          "adunit": "test-imp-id",
+          "currency": "EUR",
+          "ik": "test-request-id",
+          "ortb2": {
+            "at": 1,
+            "cur": ["EUR"],
+            "device": {
+              "ip": "123.123.123.123",
+              "ua": "test-user-agent"
+            },
+            "id": "test-request-id",
+            "imp": [
+              {
+                "banner": {
+                  "h": 50,
+                  "w": 320
+                },
+                "ext": {
+                  "bidder": {
+                    "apiKey": "test-api-key",
+                    "placement": "test-placement",
+                    "sample": "test-sample-value"
+                  }
+                },
+                "id": "test-imp-id"
+              }
+            ],
+            "regs": {
+              "ext": {
+                "gdpr": 1
+              }
+            },
+            "site": {
+              "domain": "example.com",
+              "page": "https://example.com/page"
+            },
+            "tmax": 500,
+            "user": {
+              "ext": {
+                "consent": "CO-X2XiO_eyUoAsAxBFRBECsA"
+              }
+            }
+          },
+          "params": {
+            "apiKey": "test-api-key",
+            "placement": "test-placement",
+            "sample": "test-sample-value"
+          },
+          "request_id": "test-request-id",
+          "timeout": 500,
+          "version": "prebid-server@unknown"
+        },
+        "impIDs": ["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "ad": "<div>test ad</div>",
+          "cpm": 1.5,
+          "currency": "EUR",
+          "requestId": "test-request-id"
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "EUR",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-request-id",
+            "impid": "test-imp-id",
+            "price": 1.5,
+            "adm": "<div>test ad</div>",
+            "crid": "test-request-id"
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/missena/params_test.go b/adapters/missena/params_test.go
index 393561b43cf..91eca91f929 100644
--- a/adapters/missena/params_test.go
+++ b/adapters/missena/params_test.go
@@ -36,7 +36,7 @@ func TestInvalidParams(t *testing.T) {
 var validParams = []string{
 	`{"apiKey": "PA-123456"}`,
 	`{"apiKey": "PA-123456", "placement": "sticky"}`,
-	`{"apiKey": "PA-123456", "test": "native"}`,
+	`{"apiKey": "PA-123456", "sample": "test-sample"}`,
 }
 
 var invalidParams = []string{
@@ -45,6 +45,6 @@ var invalidParams = []string{
 	`{"placement": 111}`,
 	`{"placement": "sticky"}`,
 	`{"apiKey": "PA-123456", "placement": 111}`,
-	`{"test": "native"}`,
-	`{"apiKey": "PA-123456", "test": 111}`,
+	`{"sample": "test-sample"}`,
+	`{"apiKey": "PA-123456", "sample": 111}`,
 }
diff --git a/static/bidder-params/missena.json b/static/bidder-params/missena.json
index f06b9cf4666..9e17a07f085 100644
--- a/static/bidder-params/missena.json
+++ b/static/bidder-params/missena.json
@@ -13,9 +13,9 @@
       "type": "string",
       "description": "Placement Type (Sticky, Header, ...)"
     },
-    "test": {
+    "sample": {
       "type": "string",
-      "description": "Test Mode"
+      "description": "Sample"
     },
     "formats": {
       "type": "array",

From 4923ce6f2f5896fbc7546492c5171322e660ff3a Mon Sep 17 00:00:00 2001
From: youssef <youssef.bsf@gmail.com>
Date: Mon, 12 Jan 2026 19:53:39 +0100
Subject: [PATCH 7/8] Missena: Address PR review feedback

- Remove unused MissenaAdapter struct (duplicate of adapter)
- Fix comment: "Foo adapter" -> "Missena adapter"
- Replace hardcoded currency strings with constants (currencyUSD, currencyEUR)
---
 adapters/missena/missena.go | 23 +++++++++++------------
 1 file changed, 11 insertions(+), 12 deletions(-)

diff --git a/adapters/missena/missena.go b/adapters/missena/missena.go
index 4600922ca0d..ca93801293b 100644
--- a/adapters/missena/missena.go
+++ b/adapters/missena/missena.go
@@ -51,13 +51,12 @@ type UserParams struct {
 	Settings  map[string]any `json:"settings,omitempty"`
 }
 
-type MissenaAdapter struct {
-	EndpointTemplate *template.Template
-}
-
-var defaultCur = "USD"
+const (
+	currencyUSD = "USD"
+	currencyEUR = "EUR"
+)
 
-// Builder builds a new instance of the Foo adapter for the given bidder with the given config.
+// Builder builds a new instance of the Missena adapter for the given bidder with the given config.
 func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
 	endpoint, err := template.New("endpointTemplate").Parse(config.Endpoint)
 	if err != nil {
@@ -79,15 +78,15 @@ func getVersionString() string {
 func getCurrency(currencies []string) (string, error) {
 	eurAvailable := false
 	for _, cur := range currencies {
-		if cur == defaultCur {
-			return defaultCur, nil
+		if cur == currencyUSD {
+			return currencyUSD, nil
 		}
-		if cur == "EUR" {
+		if cur == currencyEUR {
 			eurAvailable = true
 		}
 	}
 	if eurAvailable {
-		return "EUR", nil
+		return currencyEUR, nil
 	}
 	return "", fmt.Errorf("no currency supported %v", currencies)
 }
@@ -106,7 +105,7 @@ func (a *adapter) makeRequest(imp openrtb2.Imp, request *openrtb2.BidRequest, re
 	}
 	cur, err := getCurrency(request.Cur)
 	if err != nil {
-		cur = defaultCur
+		cur = currencyUSD
 	}
 
 	var floor float64
@@ -115,7 +114,7 @@ func (a *adapter) makeRequest(imp openrtb2.Imp, request *openrtb2.BidRequest, re
 		floor = imp.BidFloor
 		floorCur, err = getCurrency(request.Cur)
 		if err != nil {
-			floorCur = defaultCur
+			floorCur = currencyUSD
 			floor, err = requestInfo.ConvertCurrency(imp.BidFloor, imp.BidFloorCur, floorCur)
 			if err != nil {
 				return nil, err

From 3386c6ac2d8a0db442e18d213c955c737c4327d8 Mon Sep 17 00:00:00 2001
From: youssef <youssef.bsf@gmail.com>
Date: Tue, 20 Jan 2026 09:13:16 +0100
Subject: [PATCH 8/8] Add EIDs extraction to Missena adapter and include
 exemplary test case

---
 adapters/missena/missena.go                   |   2 +
 .../exemplary/simple-banner-with-eids.json    | 194 ++++++++++++++++++
 2 files changed, 196 insertions(+)
 create mode 100644 adapters/missena/missenatest/exemplary/simple-banner-with-eids.json

diff --git a/adapters/missena/missena.go b/adapters/missena/missena.go
index ca93801293b..ae51ec62740 100644
--- a/adapters/missena/missena.go
+++ b/adapters/missena/missena.go
@@ -122,6 +122,8 @@ func (a *adapter) makeRequest(imp openrtb2.Imp, request *openrtb2.BidRequest, re
 		}
 	}
 
+	// Extract EIDs from user.ext. Unmarshal errors are intentionally ignored
+	// to allow requests to proceed without EIDs, as they are optional.
 	var eids []openrtb2.EID
 	if request.User != nil && request.User.Ext != nil {
 		var extUser openrtb_ext.ExtUser
diff --git a/adapters/missena/missenatest/exemplary/simple-banner-with-eids.json b/adapters/missena/missenatest/exemplary/simple-banner-with-eids.json
new file mode 100644
index 00000000000..ef3495317fe
--- /dev/null
+++ b/adapters/missena/missenatest/exemplary/simple-banner-with-eids.json
@@ -0,0 +1,194 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "tmax": 500,
+    "at": 1,
+    "cur": ["EUR"],
+    "regs": {
+      "ext": {
+        "gdpr": 1
+      }
+    },
+    "user": {
+      "ext": {
+        "consent": "CO-X2XiO_eyUoAsAxBFRBECsA",
+        "eids": [
+          {
+            "source": "adserver.org",
+            "uids": [
+              {
+                "id": "111111111111",
+                "atype": 1
+              }
+            ]
+          },
+          {
+            "source": "liveramp.com",
+            "uids": [
+              {
+                "id": "AjfowMv4ZHZQME1RWTn",
+                "atype": 3
+              }
+            ]
+          }
+        ]
+      }
+    },
+    "device": {
+      "ip": "123.123.123.123",
+      "ua": "test-user-agent"
+    },
+    "site": {
+      "page": "https://example.com/page",
+      "domain": "example.com"
+    },
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "h": 50,
+          "w": 320
+        },
+        "ext": {
+          "bidder": {
+            "apiKey": "test-api-key",
+            "placement": "test-placement"
+          }
+        }
+      }
+    ]
+  },
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://example.com/?t=test-api-key",
+        "headers": {
+          "Content-Type": ["application/json;charset=utf-8"],
+          "Accept": ["application/json"],
+          "User-Agent": ["test-user-agent"],
+          "X-Forwarded-For": ["123.123.123.123"],
+          "Referer": ["https://example.com/page"],
+          "Origin": ["https://example.com"]
+        },
+        "body": {
+          "adunit": "test-imp-id",
+          "currency": "EUR",
+          "ik": "test-request-id",
+          "ortb2": {
+            "at": 1,
+            "cur": ["EUR"],
+            "device": {
+              "ip": "123.123.123.123",
+              "ua": "test-user-agent"
+            },
+            "id": "test-request-id",
+            "imp": [
+              {
+                "banner": {
+                  "h": 50,
+                  "w": 320
+                },
+                "ext": {
+                  "bidder": {
+                    "apiKey": "test-api-key",
+                    "placement": "test-placement"
+                  }
+                },
+                "id": "test-imp-id"
+              }
+            ],
+            "regs": {
+              "ext": {
+                "gdpr": 1
+              }
+            },
+            "site": {
+              "domain": "example.com",
+              "page": "https://example.com/page"
+            },
+            "tmax": 500,
+            "user": {
+              "ext": {
+                "consent": "CO-X2XiO_eyUoAsAxBFRBECsA",
+                "eids": [
+                  {
+                    "source": "adserver.org",
+                    "uids": [
+                      {
+                        "id": "111111111111",
+                        "atype": 1
+                      }
+                    ]
+                  },
+                  {
+                    "source": "liveramp.com",
+                    "uids": [
+                      {
+                        "id": "AjfowMv4ZHZQME1RWTn",
+                        "atype": 3
+                      }
+                    ]
+                  }
+                ]
+              }
+            }
+          },
+          "params": {
+            "apiKey": "test-api-key",
+            "placement": "test-placement"
+          },
+          "request_id": "test-request-id",
+          "timeout": 500,
+          "userEids": [
+            {
+              "source": "adserver.org",
+              "uids": [
+                {
+                  "id": "111111111111",
+                  "atype": 1
+                }
+              ]
+            },
+            {
+              "source": "liveramp.com",
+              "uids": [
+                {
+                  "id": "AjfowMv4ZHZQME1RWTn",
+                  "atype": 3
+                }
+              ]
+            }
+          ],
+          "version": "prebid-server@unknown"
+        },
+        "impIDs": ["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "ad": "<div>test ad</div>",
+          "cpm": 1.5,
+          "currency": "EUR",
+          "requestId": "test-request-id"
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "EUR",
+      "bids": [
+        {
+          "bid": {
+            "id": "test-request-id",
+            "impid": "test-imp-id",
+            "price": 1.5,
+            "adm": "<div>test ad</div>",
+            "crid": "test-request-id"
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}