We are process our declined subscription billing attempts in batches weekly. We send an explanation email to our customers outside of Shopify, but we also trigger an Update Payment Method email with graphQL mutation customerPaymentMethodCreditCardUpdate. We proactively pause 2 seconds between each …

"Too Many Messages Sent" updating customer payment methods

ShopNotif-SAPI May 28, 2021, 5:51pm 2

Hi,

the rate limit for the API is the same rate limit you can find here
https://shopify.dev/concepts/about-apis/rate-limits which is a query cost
of 50 points / second.

Thanks