No access control for entity &1, or use AccessControl.authorizationCheck

What causes this issue?

An entity was created with authorization check mode #CHECK but no access
control document for this entity was created yet.
Authorization check mode #CHECK is also the default value if it is not
set manually.

System Response

The system reports a warning which is shown in DDL editor.

How to fix this error?

Either: Create an access control document for this entity to get access
control.
Or: Set the authorization check mode to exclude access control from this
entity in the DDL Document by using annotation
"@AccessControl.authorizationCheck" with value #NOT_REQUIRED or
#NOT_ALLOWED.

Procedure for System Administrators

Contact the developer of the DDL document to address this warning.

Error message extract from SAP system. Copyright SAP SE.