Diagnosis
You are not authorized to maintain DataSource &v1&. For this reason theDataSource is displayed only.
Source system: &v2&
Subobject: &v3&
Activity: &v4&

Procedure
You require authorization for the authorization object for theDataSource Data Warehousing Workbench - DataSource (Release > BW 3.x
) with the field values stated above and activity &4&.