How To Fix UGMD555 - Cannot set lock for field name &1; terminating program

SAP Error Message - Details

• Message type: E = Error

• Message class: UGMD - FIN Master Data: Messages

• Message number: 555

• Message text: Cannot set lock for field name &1; terminating program

What causes this issue?

No lock can be set for &V1&.
When data conversion is being performed in an update run, no other progr
ams may access the data for &V1&. This is to ensure data integrity. For
this reason, the data for &V1& must be protected by a lock before data
conversion is performed in an update run.

System Response

The data conversion is terminated. Data is neither changed nor saved.

How to fix this error?

Ensure that no other users in the system have access to the master data
during data conversion. Ensure also that no transport requests are impor
ted into the system during data conversion.
Then execute the data conversion again.

Procedure for System Administrators

Whenever you perform a data conversion, we recommend using the system ex
clusively for the data conversion, which you can ensure by temporarily
blocking other users, for example.

Error message extract from SAP system. Copyright SAP SE.