Before you can start using payson as a payment method you will need to create an Payson account,( if you do not already have one). You also have to apply for agent integration, you do so by logging into your payson account and click on "Agentansökan" under the tab "För företag"
When that is settled you follow the following instructions;
Go to your admin area -> payment and shipping methods -> payment method. Click on payson, and then "change". In the field "Activate" change the value to "True"
In the field payson account (sellerEmail) you enter the email which you use to log into your payson account.
In the field "AgentID" you enter your agent ID. In the field MD5 Key you enter your MD5 code.