Error on /RecurringApplicationCharge/confirm_recurring_application_charge

[Ephraim1]

After clicking activate to create a recurring application charge ( API /admin/api/2021-01/recurring_application_charges.json), our app normally is redirected to a Shopify authorization page but instead, merchants are seeing this error for /RecurringApplicationCharge/confirm_recurring_application_charge, has anyone seen this? how can I correct it? is this an internal shopify issue?

similar issue reported: https://community.shopify.com/c/shopify-apis-and-sdks/internal-error-looks-like-something-went-wrong...

[Ephraim1 · Accepted solution]

Resolved this issue by ensuring a "return_url" is included when creating the recurringApplicationCharge