Specification is already being used reference specification
Message type: E = Error
Message class: CM_SUB_DATA - Substance Data (Header, ID, Reference, Materials)
Message number: 007
Message text: Specification is already being used reference specification
What causes this issue?
You attempted to assign other references to a specification that is
already being used as a reference.
How to fix this error?
In the hit list for specification management under <LS>Utilities ->
Where-used list</>, check which specification this reference is
assigned to.
Assign the other references to the selected referencing specification
directly.
Error message extract from SAP system. Copyright SAP SE.