2348671 - My inbox error "Task facade not implemented for provider"

• Users are trying to activate My Inbox app in Fiori and you receive the following error while starting the app:

          System error. For more information, check the details or contact your system administrator.

• Or click My Inbox app and get a loading page.

          If you enter in the Gateway error log you find the following message: Task facade not implemented for provider.

• Or see in a network trace one of the batch requests of the task processing odata service failing with a 400 and error text:

          No service found for namespace /IWPGW/, name TASKPROCESSING, version 0002

"Image/data in this KBA is from SAP internal systems, sample data, or demo systems. Any resemblance to real data is purely coincidental.“

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• Task Gateway
• Gateway Business Workflow Enablement
• SAP Business Workflow
• SAP NetWeaver
• SAP Web Application Server for SAP S/4HANA
• ABAP PLATFORM - Application Server ABAP
• SAP Gateway
• SAP S/4HANA 1511 or Higher
• My Inbox

ABAP platform all versions ; SAP Gateway all versions ; SAP NetWeaver all versions ; SAP S/4HANA 1610 ; SAP S/4HANA 1709 ; SAP S/4HANA 1809 ; SAP S/4HANA 1909 ; SAP S/4HANA, on-premise edition 1511 ; SAP Web Application Server for SAP S/4HANA all versions

Activate my inbox error; My inbox app error; Task facade not implemented for provider; System error For more information check the details or contact your system administrator;service Taskprocessing; Aufgabenfassade für Anbieter nicht implementiert; providederrorfalse, task processing version 2, 

, KBA , CA-INB-FIO , Fiori UI for My Inbox Application , OPU-BSE-WFM , Gateway Business Workflow Enablement , CA-INB , Fiori UI for My Inbox Application , OPU-BSC-TGW , Task Gateway , Problem