https://shopify.dev/changelog/new-rejection-reason-codes-in-payments-apps-graphql-api
New rejection reason codes in Payments Apps API - Shopify developer changelog
Shopify’s developer changelog documents all changes to Shopify’s platform. Find the latest news and learn about new platform opportunities.
payments apps apireason codesshopify developer
https://shopify.dev/docs/api/payments-apps/latest
Payments Apps API reference
Provides access to the Payments Apps over GraphQL.
payments apps apireference