How to limit calls to external gift card providers

Integrations & API
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I have an API that serves as an external gift card provider for a company that uses VTEX as its e-commerce platform. I advised the company to follow these steps:

  1. Register my external provider using this endpoint: GiftCard Hub API

  2. Register the gift card provider via the admin panel (under Settings > Payments > Providers)

  3. Create a new “Vale” (voucher) payment method and link it to the provider created in step 2.

This step-by-step process worked, and my API started receiving requests from the store. The issue is: the company was already using VTEX’s native gift card for purchases on the website, and their intention is to use my gift card for purchases via the app. So, the company has two voucher-type payment methods registered—each linked to a different channel (web/mobile) and with its respective provider.

The problem is that my API is receiving calls from both channels. It seems that the channel differentiation is only made at the payment method/provider level, not at the external provider level.

Is there any way to “link” my external provider to only one specific payment method/provider?