We had a credit note from the electricity company. We have three meters, using two different tax codes. When attempting to allocate the remaining credit to the electricity company invoice on Sage50, we found we were unable to as the credit had been created with a different tax code. This was correct. Sage50 took it as an error and did not give us an option to over-ride. I then spent a good hour trying to figure out how to put the credit note on for one electricity bill!!! I had to delete and start over pretending I had two credit notes, not one. Need to over-ride this warning if it is correct.