How To Fix UGMD124 - Database conversion may cause loss of data

SAP Error Message - Details

• Message type: E = Error

• Message class: UGMD - FIN Master Data: Messages

• Message number: 124

• Message text: Database conversion may cause loss of data

What causes this issue?

New database tables have been generated for characteristic &V1&. This
regeneration substitutes table &V2& with table &V3&. However, there may
be circumstances in which the data of table <DS:TRAS.SE11>&V2&</> cannot
be copied to table <DS:TRAS.SE11>&V3&</> without losses.
For example, this may be the case when you shorten the length of
existing fields or when you change a field type from C (characters) to
NUMC (numeric). Deleting an existing compound of characteristics can
also cause such a situation.

System Response

Processing has been interrupted. The generation of the new table
structure has not yet begun.

How to fix this error?

Decide whether you really want to keep the changes. This is normally
only advisable if (1) no data has been posted yet, or (2) only test data
has been posted.
If you want to undo the changes that have been triggered by this
message, you can do this in the definitions of the affected InfoObjects.

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.