Reversal quantity greater than quantity invoiced to date (purchase &1 &2)

What causes this issue?

For item &V2& of order &V1& the reversal quantity is greater than the
quantity previously calculated. This may be due to the following
reasons:
According to the account maintenance document that you want to reverse,
a credit has been posted.
According to the account maintenance document that you want to reverse,
an invoice has been reversed.
By reversing the account maintenance document the calculated quantity
for this transaction would be negative. As this is not supported by the
system, processing the document is terminated.

How to fix this error?

The following is an example description of a transaction that could lead
to the situation outlined above.

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

Trans.,,,,,,Quant.,,,,,,Calc. Quant.
Goods Receipt,,,,,,20 units
Invoice,,,,,,10 units,,,,,,10
Account maintenance,,,,,,10 units,,,,,,20
Credit,,,,,,15 units,,,,,,5
Reversing the account maintenance document would lead to a calculated
quantity of -5.
To be able to carry out the reversal in this instance, you first have to
reverse the credit of 15 units. This results in a calculated quantity of
20, and makes possible the reversal of the account maintenance document.

Error message extract from SAP system. Copyright SAP SE.