Update_synch attribute

A default rule blocks the use of the update_synch attribute on a table for which it is not predefined to avoid issues.

To see the list of tables where customizations are tracked, navigate to System Definition > Dictionary and filter on attributes CONTAINS update_synch.

A default rule blocks the use of the update_synch attribute on a table for which it is not predefined to avoid the following issues:
  • Some core tables require special update handling because they represent information on multiple tables. When the update_synch attribute is added to these tables, duplicate update records are created, causing major conflicts that are difficult to troubleshoot and repair.
  • Using the update_synch attribute to migrate data records between instances can cause performance issues, because it is not intended for this purpose. To migrate data, use an instance-to-instance import.

    See Import sets.

Warning: Do not add the update_synch attribute to a dictionary record. When improperly used, this attribute can cause major performance issues or cause the instance to become unavailable. Adding this attribute is not supported.