I have created a service PO and service entry sheet is entered and accepted and done the GR and invoice for few line items, later found that some data entry error by user , now when trying reverse /cancelling the material documents ,it showing like service entry sheet is locked since it accpted hence can't cancel the material documents. please advice me how to unlock the Service entry sheets and cancel the material documents?.
if the invoice is already posted for service entry sheets how can i reverse the transaction ?
You can reverse or revoke the service entry sheet using T-code ML81N here click on display<->change button then you will get one button 'Revoke' in appication tool bar.using this button you can reverse service entry sheet, after this you can also delete SES using delete button.When you revoke the service entry sheet all accounting docuements will also be reserved automatically.
Also if LIV is done then Reverse LIV by MR8M & then follow the above process.