On this tab (with the appropriate permissions) you can define various settings that affect cash back or return policy rules.

Refund fields:
Refund Cash Amount Limit - You can specify the maximum cash back that a customer can receive as a refund, or specify no limit (Unlimited).
Refund Days Limit - Specify the maximum days in which a cash refund can be given, or specify Unlimited. When you specify a limit, the No Refund and Store Credit fields under Allowed Refund Options are enabled.
Allowed Refund Options - These options are enabled when Refund days Limit is set to a maximum number of days.
No Refund - Selecting this option specifies that no refund is allowed after the specified maximum number of days.
Store Credit - Selecting this option specifies that only store credit is allowed after the specified maximum number of days.
Cash Back Policy fields:
Enable Max Change Limit - You can limit the amount of cash that can be given for change. Check the Enable Max Change Limit check box and enter a dollar value in the Max change Limit field.
Allow Debit Card Cash Back - To allow cash back as change for a debit card purchase, check the Allow Debit Card Cash Back check box and enter a dollar value in the Max Cash Back Amount field.
Allow Gift Certificate Cash Back - To allow cash back as change for a gift certificate purchase, check the Allow Gift Certificate Cash Back check box and enter a dollar value in the Max Cash Back Amount field.
Allow Coupon Cash Back - To allow cash back as change for a coupon purchase, check the Allow Coupon Cash Back check box and enter a dollar value in the Max Cash Back Amount field.
Allow Gift Card Cash Back - To allow cash back as change for a gift card purchase, check the Allow Gift Card Cash Back check box and enter a dollar value in the Max Cash Back Amount field.
Return Requests
Return Authorization Expiration - Specify a limit for return authorization in days.