Laurie M-

There is not a way to add the subcontract after you have saved the invoice and made payments against it. You would have to follow the steps of voiding the payment, void the invoice and then recreate with the subcontract number and repay.

Sorry for the delay in responding.

You don't have to go to all that trouble.

Just enter a credit for the amount of the original invoice and don't attach it to the subk. Use original inv # -a

Then enter a new invoice against the subk. Add a note explaining why it's being entered.

Use original inv # -b. also include the note

Then apply the credit towards the remaining part of the original invoice and the balance against the new one

Now the remaining balance is outstanding on the new invoice and the whole amount is against the subk

They are both extra work  so it's up to you to decide which is more cumbersome

Hello Char, both answers would have worked (other one was voiding) but I took your suggestion, it was a few steps but it did the trick and I have a historical trail of what I did.  Thank you.