Hi ,
In transation VF02 or VF03 , we go to Header / Header Partner or Item / Item Partner and double click on the partner in order to have the detail , SAP display the following error message : Function code cannot be selected Message no. 00255
That was working on ECC 6.0 enhancement package 4 we just did an upgrade from enhancement package 4 to enhancement package 6 , and that did stop working .
Thank you