Linking to PayFast Questions

Check here for help on how to integrate PayFast with your website.

• Why do I get 'Merchant Authorization Failed’?

  As per our Errors and Causes table, the signature is incorrect. Please note that the API signature is generated from the MD5 hash of the alphabetised submitted header and body variables, along with th...

• Common causes of a failed integration / signature mismatch

  The following will cause a signature mismatch or a payment to fail: This is most likely caused if you generated the MD5 hashed string with the variables in the wrong order. A required field is missing...

• My PayFast plugin on Shopify says “Legacy”, how do I update to the new Shopify integration?

  Our new integration for Shopify is now available for all merchants. The new integration is more secure and follows Shopify’s new integration requirements. Read more on New Shopify Integration- Install...

• How do I integrate PayFast with Shopify?

  The PayFast integration steps are as follows: Log into your Shopify Store. Navigate to Settings. Under ‘Third-party payment providers’ select ‘PayFast’ and enter your PayFast merchant ID and Key. To r...

• In OpenCart, PayFast isn’t listed in the Checkout.

  Ensure that you are using the latest version of our plugin for the correlating version of OpenCart. Ensure that you have added a South African geo-zone (at System > Localisation > Geo Zones). Edit the...

• How do I integrate PayFast with Gravity Forms?

  Once you have followed the installation instructions below and your form is live on your website, a buyer will be able to complete the form and an entry will be added to Gravity Forms once they checko...

• How do I integrate PayFast with OpenCart?

  Kindly note that plugin files for OpenCart version 3 and OpenCart version 2 are not compatible. You will need to install the exact plugin compatible with your OpenCart installation. Installation requi...

• How do I integrate PayFast with WooCommerce?

  Installation Requirements You will need to be registered on PayFast to accept payments and get your merchant ID, Merchant Key and Passphrase. On your PayFast merchant account on the Integration page, ...

• How do I activate the latest PayFast integration for Shopify ?

  Our latest integration for Shopify is now available for all merchants. The integration is more secure and follows Shopify’s integration requirements. The checkout process for buyers is the same and no...

• I can't upload an addon on my PrestaShop cloud website.

  You will need to register an addon account with PrestaShop in order to download the module. After clicking ‘Add New Module’ if you are unable to upload the PayFast module you will need to log out of y...