Maintenance-item-relevant data was changed in the reference object

What causes this issue?

In the master data of the reference object (for example, equipment),
relevant data for the maintenance object (such as the material or the
serial number) is changed.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

If you are in the change mode of the maintenance item/the maintenance
plan, you exit the transaction by saving the data.
If you are in the display mode of the maintenance item/the maintenance
plan, change to processing aand exit the transaction by saving the data.
Only after you have saved the data are the changes in the objects also
updated to the maintenance item.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.