New DDL source code &1 created in the software component SAP_BASIS

What causes this issue?

In downtime in a system upgrade, parts of the new ABAP code (target
release) are executed on the non-updated database (source release). In
the database of the source release, therefore, any database systems
supported by SAP in anyDB mode can be encountered.
ABAP Core Data Services enable highly complex SQL expressions to be
defined in a simple way. The complexity of these SQL statements,
however, makes it difficult to predict or test the runtime behavior for
all database systems supported in anyDB mode.
In an upgrade, it is important to keep downtime as short as possible,
but ABAP Core Data Services can endanger this prerequisite. For this
reason, ABAP Core Data Services cannot be used in upgrade-relevant ABAP
code.

System Response

An exception approval must be granted to deliver ABAP Core Data Services
within the software component SAP_BASIS.

How to fix this error?

Verify that no ABAP Core Data Services are executed in upgrade-relevant
code.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.