How to delete a canceled Service Contract

I have a request from a client to delete all “Canceled” Service Contracts

I tried adding a delete button to the Service Contracts GI.
This resulted with: Error: The record cannot be deleted.

Different approach: I tested using a SQL DELETE in my local Acumatica instance database.to bulk delete all existing Service Contracts that have a status of “Canceled”

                  DELETE FROM [FSServiceContract] WHERE Status = 'X'

This appears to have deleted all the Service Contracts that have a Status of “Canceled”, which is what the customer wants. 
Note: This SQL approach does bypass business rules in this module.
 

Question: Is there a better (preferred) approach to deleting Service Contracts that have a Status of “Canceled”?

My customer requests:

1. Bulk delete all of the Service Contracts that have a status of “Canceled”.
2. Give them the ability to delete Service Contracts that have a status of “Canceled” on their own.

Thank you in advance.

Ken Severud