3619172 - [SAP B1] Signature saving is not supported on SERVICERATING, only on ACTIVITY

Within the ERP Connector Queue in the FSM Admin interface, the following error message may be displayed for the SIGNATURE object:

• Signature saving is not supported on SERVICERATING, only on ACTIVITY.

Alternatively, a similar error may appear in the SAP B1 Cloud Connector, with the following message:

• ERROR|2025-06-11 15:57:42.4690||SAPB1Connector.DI.ObjectWriter|pid=1532|tid=22|tname=SAP B1 Connector Event Thread ObjectWriter.SaveXml error SAPB1Connector.DI.ObjectWriter.SaveXml SAPB1Connector.DI.Exceptions.DiNotSupportedFunctionalityException: Signature saving is not supported on SERVICERATING, only on ACTIVITY. at SAPB1Connector.DI.Writers.SignatureWriter.Write(XmlBasedDownstreamEvent xmlBasedDownstreamEvent) at System.Threading.Tasks.Task`1.InnerInvoke() at System.Threading.Tasks.Task.Execute()

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

• SAP Field Service Management (FSM)
• SAP Business One (SAP B1)

SAP Field Service Management, FSM, SAP B1, Business One, Signature, ObjectRating, not supported, error,  service rating , KBA , CEC-SRV-FSM-BOC , FSM Business One Connector , Known Error