If you want to collect payments from your clients, first of all you have to open ad confirm your Mistertango account following this instruction:

After that login to your Mistertango account, then go settings section „Payment Collection Settings“, enable paument collection service, choose module, enter shop website address (URL) and Callback address (URL). When you will do that, system will provide you the secret key and username for the next steps.

If you will have more questions, please write us to: support@mistertango.com