Difference between gross and posting amount is too large (&1 &2, Acct &3)

What causes this issue?

You want to process print documents with gross prices for contract
account &v3&.
The total of the posting-relevant gross price elements, including the
accumulated tax elements, does not equal the print-relevant gross
price.

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?

Correct the schema.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.