When a new merchant is able to process payments for a given payment type, the `
merchant_activated_for_payment_type` webhook will fire. This event provides your software notification that you can enable the merchant in your system for payment processing as well.
The easiest way to identify the merchant in your webhook code is to utilize the `
external_id` field, which is returned in the body. This field is populated with the value you submit along with the application. In the application api, the field is called `
external_id` and in the online version of the application `
externalid=MY_ID` can be appended to the query string.
See [Webhooks Overview](🔗) for more.