How To Fix SDDIC_ADT_DDLX000 - --- not used anymore ---

SAP Error Message - Details

• Message type: E = Error

• Message class: SDDIC_ADT_DDLX - Messages for CDS Metadata Extension

• Message number: 000

• Message text: --- not used anymore ---

What causes this issue?

This check wraps the syntax check for CDS Metadata Extensions and
reports a subset of warnings. These warnings do not prohibit the
activation of a Metadata Extension. Under some circumstances, the usage
of the affected Metadata Extension may cause runtime abortions.

Error message extract from SAP system. Copyright SAP SE.