Message type: E = Error
Message class: S~ - Repository API Business Navigator
Message number: 020
Message text: Different parent objects in diagram_info and nodes/lines/linepoints
The parent object or model in the tables diagram_info and the lines,
nodes or nodepoints table are different. You can only work on one
diagram with one call.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.