Hi there,
You can ignore the remote update, which would remove it from the retrieved update set, and then you can commit the update set.
If you are working from for example DEV > TEST > ACCEPTANCE > PRODUCTION, then this also goes well when retrieving on acceptance.
If you are working from DEV > TEST, DEV > ACCEPTANCE, DEV > PRODUCTION, then you will face the same error on every instance. In that case, I would not ignore the remote update, instead delete the retrieved update set, remove the specific customer update from your update set on DEV, and retrieve again.
