Why do we get this update set error "Changes for table u_user_staging_mdm failed to commit"

[21p31a1220]

Hii,

I am getting this error. Why do we get this? How can i resolve this? Kindly help.

I committed my update set from Dev to Test and received this error in the update set log: ‘Changes for table u_user_staging_mdm failed to commit.’ I created two new fields in the sys_user table and updated the MDM staging table to include these fields for data integration. When I moved these changes from Dev to Test, I got this error, but the update set committed successfully and the new fields were captured correctly. Should I ignore this error or take any action? Can anyone help me understand and resolve this issue?

[Siddhesh Jadhav · Accepted solution]

Hi @21p31a1220 ,

This is a common update set warning, not an actual failure.

In ServiceNow, the message
“Changes for table u_user_staging_mdm failed to commit” usually occurs when an update set tries to move data records for a staging/import table. These tables are often environment-specific and don’t match between Dev and Test.

Your update set still committed successfully because:

• Schema changes (new fields on sys_user) are supported and applied correctly

• The failure refers only to row-level data, not the table structure

Should you take action?

• If the fields exist in Test and the integration works → you can safely ignore this

• No rollback or fix is needed

Best practice

Avoid capturing data records for staging/import tables in update sets—move only schema changes.

Thanks, and Regards

Siddhesh Jadhav

Please accept the answer if it resolves your question.

[Siddhesh Jadhav · Accepted solution]

Hi @21p31a1220 ,

This is a common update set warning, not an actual failure.

In ServiceNow, the message
“Changes for table u_user_staging_mdm failed to commit” usually occurs when an update set tries to move data records for a staging/import table. These tables are often environment-specific and don’t match between Dev and Test.

Your update set still committed successfully because:

• Schema changes (new fields on sys_user) are supported and applied correctly

• The failure refers only to row-level data, not the table structure

Should you take action?

• If the fields exist in Test and the integration works → you can safely ignore this

• No rollback or fix is needed

Best practice

Avoid capturing data records for staging/import tables in update sets—move only schema changes.

Thanks, and Regards

Siddhesh Jadhav

Please accept the answer if it resolves your question.

[Ankur Bawiskar · Accepted solution]

@21p31a1220 

If all changes came fine then you can ignore that error.

You can deep dive and explore why that error came if time permits

💡 If my response helped, please mark it as correct ✅ and close the thread 🔒— this helps future readers find the solution faster! 🙏