Different AQL for Customer Returns vs Vendor Shipments

I am pretty new to SAP QM and I am trying to configure Quality inspection for Customer returns. We already have a process for Vendor receipts and Stock transfers. The AQL for customer returns should not have any impact on the AQL for Vendor receipts. I have configured QM side for customer returns. Does creating a new Sampling Procedure and assigning it to the customer return lot specific task list take care of the requirement? If not, how can ensure that the AQL of customer returns does not have any impact on the Vendor Receipts