By Customizing message PZ 850 consistency is not necessary

What causes this issue?

You deactivated message PZ 850 when you set the system. This means that
it is not necessary for tables T042I and T042Y to be consistent.
The payment program for payment requests accepts, for example, that
different bank clearing accounts can be defined for a house bank,
payment method, currency, house bank account for customer/vendor
payment (table T042I) and G/L account payments (T042Y).

Error message extract from SAP system. Copyright SAP SE.