Mercanet
Mercanet add-on include translation files for French language. If your website/user is in French, you will see the admin and the front-end already translated to French.
1. Activate Mercanet for HBook as payment gateway
Once you have activated Mercanet for HBook plugin, you need to validate the licence in HBook > Licence.
Set Mercanet as active payment gateways in HBook > Payment > Active payment gateways.
2. In HBook, add Mercanet credentials
Set if you are in "Test" or "Live" mode in HBook > Payment > Mercanet settings.
If you are in Test environment, there is no other settings needed

If you are in Live environment, you will need to add the following information. The Merchant ID is provided by BNP Paribas Mercanet.

Where to find the Secret Key and Version Key for Live environment?
You will find instructions to retrieve your Secret Key and Version Key here on BNP Paribas Mercanet documentation.
Which Test cards to use?
You can find the test card details in this section from BNP Paribas Mercanet documentation.