SAP Credit Management active: Entries 'A', 'B' and 'C' not supported

What causes this issue?

SAP Credit Management is active.
The following values are not supported:
'A' (execute credit limit check and warning)
'B' (execute credit limit check and error)
'C' (execute credit limit check and delivery block)

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

System Response

How to fix this error?

You can make the necessary changes in the Customizing activity
<DS:SIMG.SIMG_CFMENUOLSDOVAD>Assign Sales Documents and Delivery
Documents:</>
In the popup-box, choose <ZK>Credit limit check for order types</>.
In the column <ZK>Check Credit</>, enter value 'D' (Credit Management:
Automatic credit control) or space.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.