feat: send unattributed sessions to /outcomes/measure (#1648)

* feat: send unattributed sessions to /outcomes/measure

When the SDK was migrated from the player model, the /players/{id}/on_focus call was split into two requests: session time via Update User and session duration outcomes via `/outcomes/measure`. The outcomes half was only wired up for attributed sessions, so unattributed sessions never sent to `/outcomes/measure`. However, to get unattributed session data in the dashboard, unattributed sessions needed to be sent to `/outcomes/measure` as well.

- Remove END_SESSION guard in OSFocusTimeProcessorFactory that prevented creating an unattributed processor for session-end events
- Add sendSessionEndOutcomes call to OSUnattributedFocusTimeProcessor alongside sendSessionTime, matching the old model where both were always sent together

* test: add unit tests for OSRequestSendSessionEndOutcomes request builder

Verify the request parameters for unattributed (notification_ids omitted,
direct: false), attributed direct (direct: true), and attributed indirect
(direct: false) influence types.

Author: nan-li

iOS_SDK/OneSignalSDK/OneSignal.xcodeproj/project.pbxproj

@@ -79,6 +79,7 @@
 		3C30FE362F21FBE1001B9C25 /* EarlyTriggerTrackingTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3C30FE352F21FBE1001B9C25 /* EarlyTriggerTrackingTests.swift */; };
 		3C3D34E92E95EAA5006A2924 /* LiveActivityConstants.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3C3D34E82E95EAA5006A2924 /* LiveActivityConstants.swift */; };
 		3C3D8D782E92DB7500C3E977 /* OSLiveActivityViewExtensions.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3C3D8D772E92DB7500C3E977 /* OSLiveActivityViewExtensions.swift */; };
+		3C4319092F4CE9D90075492D /* SessionEndOutcomesRequestTests.swift in Sources */ = {isa = PBXBuildFile; fileRef = 3C4319082F4CE9D90075492D /* SessionEndOutcomesRequestTests.swift */; };
 		3C44673E296D099D0039A49E /* OneSignalMobileProvision.m in Sources */ = {isa = PBXBuildFile; fileRef = 912411FD1E73342200E41FD7 /* OneSignalMobileProvision.m */; };
 		3C44673F296D09CC0039A49E /* OneSignalMobileProvision.h in Headers */ = {isa = PBXBuildFile; fileRef = 912411FC1E73342200E41FD7 /* OneSignalMobileProvision.h */; settings = {ATTRIBUTES = (Public, ); }; };
 		3C448B9D2936ADFD002F96BC /* OSBackgroundTaskHandlerImpl.h in Headers */ = {isa = PBXBuildFile; fileRef = 3C448B9B2936ADFD002F96BC /* OSBackgroundTaskHandlerImpl.h */; };
@@ -1318,6 +1319,7 @@
 		3C30FE352F21FBE1001B9C25 /* EarlyTriggerTrackingTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = EarlyTriggerTrackingTests.swift; sourceTree = "<group>"; };
 		3C3D34E82E95EAA5006A2924 /* LiveActivityConstants.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = LiveActivityConstants.swift; sourceTree = "<group>"; };
 		3C3D8D772E92DB7500C3E977 /* OSLiveActivityViewExtensions.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OSLiveActivityViewExtensions.swift; sourceTree = "<group>"; };
+		3C4319082F4CE9D90075492D /* SessionEndOutcomesRequestTests.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = SessionEndOutcomesRequestTests.swift; sourceTree = "<group>"; };
 		3C448B9B2936ADFD002F96BC /* OSBackgroundTaskHandlerImpl.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = OSBackgroundTaskHandlerImpl.h; sourceTree = "<group>"; };
 		3C448B9C2936ADFD002F96BC /* OSBackgroundTaskHandlerImpl.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = OSBackgroundTaskHandlerImpl.m; sourceTree = "<group>"; };
 		3C448BA12936B474002F96BC /* OSBackgroundTaskManager.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = OSBackgroundTaskManager.swift; sourceTree = "<group>"; };
@@ -2586,6 +2588,7 @@
 				3C2C7DC2288E007E0020F9AE /* UnitTests-Bridging-Header.h */,
 				4746E2A62B86B64100D6324C /* LiveActivitiesSwiftTests.swift */,
 				4746E2AA2B8775C400D6324C /* LiveActivitiesObjcTests.m */,
+				3C4319082F4CE9D90075492D /* SessionEndOutcomesRequestTests.swift */,
 			);
 			path = UnitTests;
 			sourceTree = "<group>";
@@ -4531,6 +4534,7 @@
 				4529DED21FA81EA800CEAB1D /* NSObjectOverrider.m in Sources */,
 				CA42CAC320D99CB90001F2F2 /* ProvisionalAuthorizationTests.m in Sources */,
 				5B58E4F8237CE7B4009401E0 /* UIDeviceOverrider.m in Sources */,
+				3C4319092F4CE9D90075492D /* SessionEndOutcomesRequestTests.swift in Sources */,
 				CA8E19022193C6B0009DA223 /* InAppMessagingIntegrationTests.m in Sources */,
 				CAB4112B20852E4C005A70D1 /* DelayedConsentInitializationParameters.m in Sources */,
 				7AECE59223674A9700537907 /* OSAttributedFocusTimeProcessor.m in Sources */,

iOS_SDK/OneSignalSDK/OneSignalCore/Source/OneSignalCommonDefines.h

@@ -200,7 +200,7 @@ typedef enum {ATTRIBUTED, NOT_ATTRIBUTED} FocusAttributionState;
 #define focusAttributionStateString(enum) [@[@"ATTRIBUTED", @"NOT_ATTRIBUTED"] objectAtIndex:enum]
 
 // OneSignal Background Task Identifiers
-#define ATTRIBUTED_FOCUS_TASK                   @"ATTRIBUTED_FOCUS_TASK"
+#define SESSION_OUTCOMES_TASK                   @"SESSION_OUTCOMES_TASK"
 #define OPERATION_REPO_BACKGROUND_TASK          @"OPERATION_REPO_BACKGROUND_TASK"
 #define IDENTITY_EXECUTOR_BACKGROUND_TASK       @"IDENTITY_EXECUTOR_BACKGROUND_TASK_"
 #define PROPERTIES_EXECUTOR_BACKGROUND_TASK     @"PROPERTIES_EXECUTOR_BACKGROUND_TASK_"

iOS_SDK/OneSignalSDK/OneSignalOutcomes/Source/OutcomeEvents/OneSignalOutcomeEventsController.m

@@ -117,12 +117,12 @@ - (void)sendSessionEndOutcomes:(NSNumber * _Nonnull)timeElapsed
                                                   pushSubscriptionId:pushSubscriptionId
                                                   onesignalId:onesignalId
                                                   influenceParams:influenceParams] onSuccess:^(NSDictionary *result) {
-        [OneSignalLog onesignalLog:ONE_S_LL_DEBUG message:@"OneSignalOutcomeEventsController:sendSessionEndOutcomes attributed succeed"];
+        [OneSignalLog onesignalLog:ONE_S_LL_DEBUG message:@"OneSignalOutcomeEventsController:sendSessionEndOutcomes succeed"];
         if (successBlock) {
             successBlock(result);
         }
     } onFailure:^(OneSignalClientError *error) {
-        [OneSignalLog onesignalLog:ONE_S_LL_ERROR message:@"OneSignalOutcomeEventsController:sendSessionEndOutcomes attributed failed"];
+        [OneSignalLog onesignalLog:ONE_S_LL_ERROR message:@"OneSignalOutcomeEventsController:sendSessionEndOutcomes failed"];
         if (failureBlock) {
             failureBlock(error.underlyingError);
         }

iOS_SDK/OneSignalSDK/Source/OSAttributedFocusTimeProcessor.m

@@ -44,7 +44,7 @@ @implementation OSAttributedFocusTimeProcessor {
 
 - (instancetype)init {
     self = [super init];
-    [OSBackgroundTaskManager setTaskInvalid:ATTRIBUTED_FOCUS_TASK];
+    [OSBackgroundTaskManager setTaskInvalid:SESSION_OUTCOMES_TASK];
     return self;
 }
 
@@ -85,7 +85,7 @@ - (void)sendOnFocusCallWithParams:(OSFocusCallParams *)params totalTimeActive:(N
         return;
     }
 
-    [OSBackgroundTaskManager beginBackgroundTask:ATTRIBUTED_FOCUS_TASK];
+    [OSBackgroundTaskManager beginBackgroundTask:SESSION_OUTCOMES_TASK];
 
     if (params.onSessionEnded) {
         [self sendBackgroundAttributedSessionTimeWithParams:params withTotalTimeActive:@(totalTimeActive)];
@@ -114,10 +114,10 @@ - (void)sendBackgroundAttributedSessionTimeWithParams:(OSFocusCallParams *)param
         [OneSignal sendSessionEndOutcomes:totalTimeActive params:params onSuccess:^(NSDictionary *result) {
             [OneSignalLog onesignalLog:ONE_S_LL_DEBUG message:@"sendBackgroundAttributed succeed"];
             [super saveUnsentActiveTime:0];
-            [OSBackgroundTaskManager endBackgroundTask:ATTRIBUTED_FOCUS_TASK];
+            [OSBackgroundTaskManager endBackgroundTask:SESSION_OUTCOMES_TASK];
         } onFailure:^(NSError *error) {
             [OneSignalLog onesignalLog:ONE_S_LL_ERROR message:@"sendBackgroundAttributed failed, will retry on next open"];
-            [OSBackgroundTaskManager endBackgroundTask:ATTRIBUTED_FOCUS_TASK];
+            [OSBackgroundTaskManager endBackgroundTask:SESSION_OUTCOMES_TASK];
         }];
     });
 }
@@ -128,7 +128,7 @@ - (void)cancelDelayedJob {
 
     [restCallTimer invalidate];
     restCallTimer = nil;
-    [OSBackgroundTaskManager endBackgroundTask:ATTRIBUTED_FOCUS_TASK];
+    [OSBackgroundTaskManager endBackgroundTask:SESSION_OUTCOMES_TASK];
 }
 
 @end

iOS_SDK/OneSignalSDK/Source/OSFocusTimeProcessorFactory.m

@@ -76,9 +76,6 @@ + (OSBaseFocusTimeProcessor *)createTimeProcessorWithInfluences:(NSArray<OSInflu
                 timeProcesor = [OSAttributedFocusTimeProcessor new];
                 break;
              case NOT_ATTRIBUTED:
-                // TODO: Clean up, this check should be for getting and not create
-                if (focusEventType == END_SESSION)
-                    break;
                 timeProcesor = [OSUnattributedFocusTimeProcessor new];
                 break;
         }

iOS_SDK/OneSignalSDK/Source/OSUnattributedFocusTimeProcessor.m

@@ -28,15 +28,21 @@
 #import <OneSignalCore/OneSignalCore.h>
 #import <OneSignalOSCore/OneSignalOSCore.h>
 #import "OSMacros.h"
+#import "OneSignalFramework.h"
 #import "OSUnattributedFocusTimeProcessor.h"
 #import <OneSignalUser/OneSignalUser.h>
 
+@interface OneSignal ()
++ (void)sendSessionEndOutcomes:(NSNumber*)totalTimeActive params:(OSFocusCallParams *)params onSuccess:(OSResultSuccessBlock _Nonnull)successBlock onFailure:(OSFailureBlock _Nonnull)failureBlock;
+@end
+
 @implementation OSUnattributedFocusTimeProcessor
 
 static let UNATTRIBUTED_MIN_SESSION_TIME_SEC = 60;
 
 - (instancetype)init {
     self = [super init];
+    [OSBackgroundTaskManager setTaskInvalid:SESSION_OUTCOMES_TASK];
     return self;
 }
 
@@ -74,6 +80,17 @@ - (void)sendOnFocusCallWithParams:(OSFocusCallParams *)params totalTimeActive:(N
     [OneSignalLog onesignalLog:ONE_S_LL_DEBUG message:[NSString stringWithFormat:@"OSUnattributedFocusTimeProcessor:sendSessionTime of %@", @(totalTimeActive)]];
     [OneSignalUserManagerImpl.sharedInstance sendSessionTime:@(totalTimeActive)];
     [super saveUnsentActiveTime:0];
+
+    [OSBackgroundTaskManager beginBackgroundTask:SESSION_OUTCOMES_TASK];
+    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
+        [OneSignal sendSessionEndOutcomes:@(totalTimeActive) params:params onSuccess:^(NSDictionary *result) {
+            [OneSignalLog onesignalLog:ONE_S_LL_DEBUG message:@"sendUnattributed session end outcomes succeed"];
+            [OSBackgroundTaskManager endBackgroundTask:SESSION_OUTCOMES_TASK];
+        } onFailure:^(NSError *error) {
+            [OneSignalLog onesignalLog:ONE_S_LL_ERROR message:@"sendUnattributed session end outcomes failed"];
+            [OSBackgroundTaskManager endBackgroundTask:SESSION_OUTCOMES_TASK];
+        }];
+    });
 }
 
 - (void)cancelDelayedJob {

iOS_SDK/OneSignalSDK/UnitTests/.swiftlint.yml

@@ -0,0 +1,3 @@
+# in tests, we may want to force cast and throw any errors
+disabled_rules:
+  - force_cast

iOS_SDK/OneSignalSDK/UnitTests/SessionEndOutcomesRequestTests.swift

@@ -0,0 +1,110 @@
+/*
+ Modified MIT License
+
+ Copyright 2026 OneSignal
+
+ Permission is hereby granted, free of charge, to any person obtaining a copy
+ of this software and associated documentation files (the "Software"), to deal
+ in the Software without restriction, including without limitation the rights
+ to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the Software is
+ furnished to do so, subject to the following conditions:
+
+ 1. The above copyright notice and this permission notice shall be included in
+ all copies or substantial portions of the Software.
+
+ 2. All copies of substantial portions of the Software may only be used in connection
+ with services provided by OneSignal.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ THE SOFTWARE.
+ */
+
+import XCTest
+import OneSignalOutcomes
+
+class SessionEndOutcomesRequestTests: XCTestCase {
+
+    func testUnattributedInfluence() {
+        let influenceParam = OSFocusInfluenceParam(
+            paramsInfluenceIds: nil,
+            influenceKey: "notification_ids",
+            directInfluence: false,
+            influenceDirectKey: "direct"
+        )!
+
+        let request = OSRequestSendSessionEndOutcomes.withActiveTime(
+            120,
+            appId: "test-app-id",
+            pushSubscriptionId: "test-push-sub-id",
+            onesignalId: "test-onesignal-id",
+            influenceParams: [influenceParam]
+        )
+
+        XCTAssertEqual(request.path, "outcomes/measure")
+        XCTAssertEqual(request.method, POST)
+
+        let params = request.parameters as! [String: Any]
+        XCTAssertEqual(params["app_id"] as? String, "test-app-id")
+        XCTAssertEqual(params["id"] as? String, "os__session_duration")
+        XCTAssertEqual(params["session_time"] as? Int, 120)
+        XCTAssertEqual(params["onesignal_id"] as? String, "test-onesignal-id")
+
+        let subscription = params["subscription"] as! [String: Any]
+        XCTAssertEqual(subscription["id"] as? String, "test-push-sub-id")
+        XCTAssertEqual(subscription["type"] as? String, "iOSPush")
+
+        XCTAssertEqual(params["direct"] as? Bool, false)
+        XCTAssertNil(params["notification_ids"])
+    }
+
+    func testAttributedDirectInfluence() {
+        let notificationIds = ["notif-1", "notif-2"]
+        let influenceParam = OSFocusInfluenceParam(
+            paramsInfluenceIds: notificationIds,
+            influenceKey: "notification_ids",
+            directInfluence: true,
+            influenceDirectKey: "direct"
+        )!
+
+        let request = OSRequestSendSessionEndOutcomes.withActiveTime(
+            60,
+            appId: "test-app-id",
+            pushSubscriptionId: "test-push-sub-id",
+            onesignalId: "test-onesignal-id",
+            influenceParams: [influenceParam]
+        )
+
+        let params = request.parameters as! [String: Any]
+        XCTAssertEqual(params["direct"] as? Bool, true)
+        XCTAssertEqual(params["notification_ids"] as? [String], notificationIds)
+        XCTAssertEqual(params["session_time"] as? Int, 60)
+    }
+
+    func testAttributedIndirectInfluence() {
+        let notificationIds = ["notif-1", "notif-2", "notif-3"]
+        let influenceParam = OSFocusInfluenceParam(
+            paramsInfluenceIds: notificationIds,
+            influenceKey: "notification_ids",
+            directInfluence: false,
+            influenceDirectKey: "direct"
+        )!
+
+        let request = OSRequestSendSessionEndOutcomes.withActiveTime(
+            90,
+            appId: "test-app-id",
+            pushSubscriptionId: "test-push-sub-id",
+            onesignalId: "test-onesignal-id",
+            influenceParams: [influenceParam]
+        )
+
+        let params = request.parameters as! [String: Any]
+        XCTAssertEqual(params["direct"] as? Bool, false)
+        XCTAssertEqual(params["notification_ids"] as? [String], notificationIds)
+    }
+}

iOS_SDK/OneSignalSDK/UnitTests/UnitTests-Bridging-Header.h

@@ -3,3 +3,4 @@
 //
 
 #import "OneSignalFramework.h"
+#import "OSOutcomesRequests.h"