Updating the module

To update the payment module, you must first delete its previous version.

WARNING : Do not forget to save the parameters of your module before you uninstall it and make sure you save the production key that is no longer visible in the PayZen Back Office.

Moreover, the new version of the module introduces a new setting: Signature algorithm. By default, this field is set to HMAC-SHA-256 and its value must be the same as in the PayZen Back Office (Settings > Shop). If the algorithm is different, the parameter must be changed via the PayZen Back Office.

From Prestashop 1.6:

  1. Go to the Modules and Services > Modules and Services menu of the Prestashop Back Office.
  2. Search for the PayZen payment module.
  3. Click the arrow to get the dropdown list displayed, then select Uninstall.
  4. Click the arrow to get the dropdown list displayed, then select Delete.
  5. From now on, you can install the new module. This procedure is described in the next chapter.

From Prestashop 1.7:

  1. Go to the Module > Module Manager menu of the Prestashop Back Office.
  2. Search for the PayZen payment module.
  3. Click the arrow to get the dropdown list displayed, then select Uninstall.
  4. From now on, you can install the new module. This procedure is described in the next chapter.