External Purchase Price Contract and error purge at change of GPO

Summary: Change of GPO need to purge EPP contracts and stray error messages.

Content (please ensure you mask any confidential information): We've changed GPO and are planning to re-initiate EPP with the new GPO provider. How do we delete all cancelled EPP contracts and pending Purchase Agreement Errors that relate to the old GPO. All links between the old BPAs and EPP have been removed.

The two Scheduled processes previously recommended Purge External Purchase Prices Interface Data and Purge Processsed Open Interface Documents removed old data but does not impact the existing EPP contracts of Purchase Agreement Errors.

Do I need to use VBSC to remove these documents and have a clean slate for the new GPO?