Delivery Notes

Dear Front Accounting Team

Whenever, I create the "Direct Sales Invoice", it generates the delivery note in background automatically and give it an "auto" reference number. I want to disable the delivery note function in the sales module. It means that its only the invoice that should be made and no delivery note should be prepared.

Similarly when i see the customer activity under "Add and Manage Customer > Transactions", there it also shows up the delivery notes automatically prepared over there. I also want to remove the delivery notes from this listing also.

Waiting for an early and appropriate response.