You expect to create the Service Confirmation from a Sales Order via webservice, however, the response comes as ID does not exist.
SAP Business By Design
Reproducing the Issue
You use the service: manageserviceconfirmationin_v1 to create a Service Confirmation from a Sales Order via webservice.
You filled the tag as following:
The response comes as following: Service Order ID YYYY does not exist.
YYYY: Represents the ID of the Document.
The webservice manageserviceconfirmationin_v1 only creates the Service Confirmation from a Service Order, and not from a Sales Order, hence the error faced.
This is the standard behavior. Currently, there's no webservice that takes Sales Order as the base reference to create a Service Confirmation. This is considered a new requirement.
It's necessary to add this idea in the Influence Platform.
Service Confirmation, Webservice, Sales Order, Reference , KBA , AP-SCO-SC , Service Confirmation , AP-SLO-SO , Sales Order , How To