Checkout asking for TAX_CREDENTIAL_BR twice

Topic summary

  • Core issue: During checkout, the TAX_CREDENTIAL_BR field appears twice.
  • Context: The store is integrating a subscription app. The duplication occurs specifically when a cart includes both a subscription product and a regular (one-time) product.
  • Reproduction: Add one subscription item and one normal item to the cart, proceed to checkout, and observe the duplicated TAX_CREDENTIAL_BR field.
  • Evidence: A screenshot is provided and is central to understanding the problem (shows the duplicated field at checkout).
  • Status: No solutions or root cause identified in the thread yet. The discussion is open and unresolved.
  • Open questions: Whether the duplication is caused by the subscription app, a checkout configuration, or a platform bug remains unclear. Guidance or fixes have not been shared.
Summarized with AI on February 1. AI used: gpt-5.

We are trying to add a subscription app on our store, but every time when we try to buy a subscription product and a normal product, it duplicate the TAX_CREDENTIAL_BR field.