Popular Articles

  1. Visa’s Decline Code Grouping

    Information about Visa's rules for decline code reasons and appropriate retry strategies.
  2. Surcharges and How They Work

    Information on surcharges and how they work.
  3. Configure Account Updater

    How to configure Qualpay Account Updater.
  4. MasterCard's Decline Code Grouping and MAC

    Information about MasterCard's decline code grouping program (MAC).
  5. Convenience Fees and How They Work

    Information on convenience fees and how they work.
  6. Merchant Account Reserve Overview

    Overview of merchant account reserves.
  7. Contacting Maast

    Customer Support contact information for Maast.
  8. Capture

    How to do a capture or partial capture of transactions that have been run on a Maast product.
  9. ACH Payment and Validation Response Codes

    Lists of possible response codes for ACH verification transactions.
  10. How To Reconcile A Statement

    Information about how to reconcile your Merchant statement.