card_not_supported
The card doesn't support this type of purchase.
What just happened
Card type can't be used for this kind of transaction (e.g. a debit card on a recurring international purchase).
Retry strategy
Don't retry — it'll keep failing. Ask for a different card.
What to tell the customer
Your card doesn't support recurring charges. Please add a different payment method to keep your subscription active.
Recommended action
Skip retries, send update-card email immediately with explanation.
Want to see what this looks like on your Stripe?
See how often "card_not_supported" hits your Stripe account in the last 30 days — and how much MRR is at risk because of it.
Related codes
Related guides
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How to Find and Size Failed Payments in Stripe (Step-by-Step)
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