PayTM Payment
This payment is available for WooCommerce.
You need to install Paytm Payment Gateway plugin and enable it to work on your website. You need to config Merchant ID, Merchant Key, and select environment.
Then, enter Merchant ID
to Merchant Identifier:
astuce
Note: the merchantId must be the same on your website and the production is must be the same as the environment on the website as well.