Diagnosis
You cannot change the request data.
Possible reasons:
The request already exists in an InfoCube/DataStore object. Changes tothe data would lead to inconsistencies.
The request has already been successfully updated to the master datatable of an InfoObject.
You do not have change authorization.

Procedure
For 1:
In the Data Warehousing Workbench - Modeling in the data target tree,select the InfoCubes or DataStore objects to which you want to updateupdate the data for this request.
In the context menu, choose Manage InfoCube or Manage DataSto
re Object. Search for the existing request and delete it from theInfoCube or DataStore object.
For 2:
Make your changes directly in master data maintenance for thecorresponding InfoObject.
For 3:
Obtain the required authorization.
Edit the PSA.