Unable to purge shipments

 Hi all,

We are trying to purge all our shipments. We created a saved query to pull in the required shipments which are to be purged.

I followed the below steps:

1. Logged in as DBA admin user

2. Configuration and Administration >>Process Management >> Mark for Purge

3. Selected the Data Query type as Shipment

4. Next selected the saved query based on which the shipments have to be purged and submit now (i didnt schedule for a later time)

Now i expected these shipments which meet the query condition would be removed. But this didnot happen.

Could any body suggest what are the steps to be followed in data purging?