SAP Message Q6156 - Information structure &1: error in the field selection for index &2

Diagnosis
You entered the field &V4& in index position &V3& of the index &V2&belonging to information structure &V1&. However, as the field alreadyoccupies the position 1 to &V3&-1, this is not allowed. Each field ofan info structure can only be used once in an index.

System Response
The information structure will not be activated.
The index can only be created after the error has been corrected.

Procedure
After revising the index, delete the info structure table and thenreactivate the info structure.