Basic setting for error handling of customer-view down payments

What causes this issue?

An event was triggered that belongs to posting type 01 (customer down
payment).

System Response

If no special entry exists for this event in the Customizing of error
events, the system tries to execute the posting based on the basic
setting for error handling of posting type 01 (message 100).
If no basic setting exists for posting type 01, the system cannot
execute the posting automatically.

How to fix this error?

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

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.