I am trying to make the cancellation of the entrance of services for the ML81N however it appears the message to report RM06EKBE - ME87 saying that the aggregation of the registers of the purchase order records is necessary to cancel this aggregation first. However I do not have success in the ME87. In Purchase order records there is only GR for ML81N. In Me87 I was executing but i dont have sucess. I need to cancell the entrance of services. Could you please help me?