How To Fix UGMD419 - Mapping class &4 cannot be used; see long text

SAP Error Message - Details

• Message type: E = Error

• Message class: UGMD - FIN Master Data: Messages

• Message number: 419

• Message text: Mapping class &4 cannot be used; see long text

What causes this issue?

You want to assign to the role attribute &v2& for field &v1& its remote
attribute &v3&. For mapping the attribute values, the
<DS:DE.UG_MAPPING_CLASS>mapping class</> &V4& is transferred. This class
cannot be used here.
To make it possible to use a class for mapping of attribute values, this
must exist active in the ABAP repository, and it must implement the
<DS:ABEN.INTERFAC>interfaces</> IF_UG_MD_VALUE_MAPPING completely.

System Response

You are unable to save the database.

How to fix this error?

If this involves a customer-defined class, correct this, or else change
the attribute assignment so that this class is no longer used in it.
If this involves a delivered class, get in contact with SAP.

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.