.. _delete_issues_and_purges:

Delete Issues and Purges
------------------------

Whenever Unified CM and CUCX data is synced into VOSS Automate, it assumes management
of the data and, as a result, that data would be deleted by any hierarchy delete
performed in VOSS Automate. These deletes can fail if your Cisco Unified Communications
Manager model dependencies don't reflect the additional data contained in existing,
provisioned dial plans brought into VOSS Automate.

To prevent these delete failures, perform a purge operation instead of a delete.
Purging deletes all users, subscribers, phone, profiles, and devices from a
brownfield customer's VOSS Automate while leaving these objects on the Unified CM
and the Cisco Unity Connection.

To execute a purge:

1. Log in to VOSS Automate as a reseller administrator or higher.
2. Access the **Data Sync** form (default menu **Administration Tools > Data Sync**).
3. From the hierarchy drop-downs, choose the customer whose data you need to
   purge. If the data was created at the Site hierarchy, the purge only takes
   place at site level.
4. Click **HcsPurge-<IP address + fully qualified domain name + hostname>**.
5. From the **Sync Type** drop-down, choose **Purge Local Resources**. All other
   default values remain unchanged.
6. Click **Execute**.
7. Repeat steps 4-6 for the Unified CM.
8. Verify that the instances and device models are deleted by checking Phones,
   Users, and Voicemail.
   
   At this point, you can try again to migrate the customer into VOSS Automate by
   executing HcsPull from the same menu for Unified CM and Unity Connection, and
   then performing the Overbuild operations.