SAP Message 56104 - The amount of the credit card document can not be raised.

Diagnosis
You tried to raise the amount of a credit card document higher than theoriginal document amount.
If the original document amount was not reconstructible, the lastexisting amount was applied for comparison.
As a result, the recontructed (see above) document amount was restoredamounting to &V1& &v2&. This is also the maximum possible amount forthis document.