In transaction IA05 I try to create a new general taks list. When adding a new group counter (12) to my group 264 I get the error message "The planner group counter number has already been allocated". But when I go in display mode (IA07) type in group 264 and hit the Task list overview button I can not find group counter 12 assigned to group 264. Does anyone know what is wrong and how to correct it?
Best regards
Andreas