How can I create a merchant secret key in the gateway manager?

Select a merchant in the gateway manager, click on "Recreate Merchant Secret Key" and follow the next steps.
Be aware that if there already is a Merchant Secret Key for this merchant it will be invalidated when creating a new one. This especially means that transaction processing will not be possible anymore with the current Merchant Secret Key.
  1. Type "DESTROY" into the textfield.
  2. Click on the red "Recreate Merchant Secret Key" button to create a new merchant secret key.
  3. Copy the new merchant secret key to a safe location and use it to do a transaction with the pay button or the SDK.