Billing document &1: outsorting with print document &2

What causes this issue?

The billing document was outsorted in invoicing and therefore cannot
simply be reversed in billing.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

You must first reset the print document using the invoicing reversal
function.


Note:
If this function is not possible, you can release the print document
first and then reversed it in invoicing. Only then can the original
billing document be reversed in billing.

Error message extract from SAP system. Copyright SAP SE.