Find key information about managing your merchant number. We cover everything from providing guidance on the most suitable merchant number for your business, managing multiple merchant numbers, to advising on how to accept multiple currencies. Adding currencies See how simple it is to add currencies to your merchant number Adding currencies Adding merchant numbers Adding merchant numbers is easy. Find out how Adding merchant numbers Authorisation process Everytime a shopper processes a transaction through the Opayo system there are 3 steps that are completed in order for the transaction to complete. Authorisation process Changing merchant number From time to time we understand that you may change the merchant number on your account Changing merchant number Chargebacks Get the lowdown on chargebacks More about chargebacks General setup Useful information when setting up your Opayo account General setup Payment types Learn more about what card types you're able to have active on your Opayo account Payment types Terminal IDs Terminal ID’s are required for your merchant number to be used with Opayo, find out more information here Terminal IDs Frequently asked questions Are my card details secure? Find out more How do I know if my payment was successful? Find out more 3D Secure v2 - what do customers need to do? Find out more Load more FAQs