Hi, please help me, in FBL1N vendor open items I am trying to make a massive modification of the BSEG-ZLSPR payment block field, but it doesn't work, I get the message: "Unable to change every document" "MSITEM006" The log says: Error in Mass Change. Error reason: Function code cannot be selected. In SPRO Documnet Change Rules\Line Item I have the entry: AccTy K Fld name BSEG-ZLSPR Field Cab Be Changed "X" What am I missing?<br>