SAP Message WA637 - Type linkage & & for &: Indicator for type linkage not set

Diagnosis
The indicator denoting that the specified linkage from object type andevent to receiver type is atype linkage cannot beset.

System Response
The action was aborted and the indicator remains unchanged. If theindicator is not set, the linkage in interpreted as aninstance linkage.
INCLUDE NA_WF-ADMINISTRATOR OBJECT DOKU ID TX

Procedure for System Administration
Check whether the specified linkage exists.
INCLUDE WF_NA_EVENT_GLOBAL_FLAG OBJECT DOKU ID TX