3730004 - Substitutions functionality stoped working in Task Center

Starting on March 19th 2026, substitutions can not be submitted via task Center because the user search is failing.

Error in the screen:

User details cannot be displayed at the moment.

Following request failing: /comsapbpminbox-service.comsapbpmtcinbox/task-center-service/v1/users?$search=...

error": {

        "code": "sap.taskcenter.internal.server.error",

        "message": "Failed to send audit log event: 403 Forbidden: \"{\"error\":{\"code\":\"0403\",\"message\":\"AlsRegion doesn't match\"}}\"",

        "details": []

    }

}

or

{
    "error": {
        "code": "sap.taskcenter.internal.server.error",
        "message": "Failed to send audit log event: 401 Unauthorized: [no body]",
        "details": []
    }
}

SAP Task Center

KBA , LOD-BPM-INB , SAP Task Center , CA-INB-TSK , SAP Task Center Web App , Problem