Meaning
The issuer or Stripe flagged the transaction as 'Invalid expiry month'.
Causes
- Issuer declined the transaction.
- Card details or security checks failed.
Fixes
- Verify card details and try again.
- Ask the cardholder to contact their issuer.
Example
Your payment was declined: invalid_expiry_month (Invalid expiry month)
FAQ
- Should I retry immediately?
Retrying may fail if the issuer blocks it. - What should I tell the customer?
Ask them to contact their bank or use another card.
Contact
If it keeps failing, ask the cardholder to contact their issuer.