I've run into the exact same issue with OVH's SMS API sender verification before—here are some practical troubleshooting steps to help you resolve it:

• Double-check sender format compliance
  OVH has strict rules for sender IDs:

  • If using a phone number as the sender, it must be associated with your OVH account (no external numbers allowed).
  • Brand name senders usually have length limits (typically 3-11 alphanumeric characters) and can't include special symbols or spaces.
  • Some regions require pre-approved sender IDs for commercial use, so make sure your sender fits local regulations.

• Validate your verification request parameters
  Ensure you're passing the correct serviceName and sender values in your POST request—even a tiny typo (like extra spaces or wrong capitalization) can break the process. Also, check if you need to specify the verification method: some regions require explicitly setting the method parameter to either sms or email in your request body (e.g., {"method": "sms"}).

• Check your account's contact channels

  • For email verification: Look in your spam/junk folders, or check if your email provider marked OVH's messages as blocked. Confirm the email linked to your OVH account is up-to-date.
  • For SMS verification: Verify your linked phone number is correct, and check if your carrier is blocking SMS from OVH's shortcodes (try disabling any spam filters on your device).

• Inspect API response details
  Re-run your verification request with a tool like Postman or curl and closely examine the response:

  curl -X POST \
    -H "Content-Type: application/json" \
    -H "X-Ovh-Application: YOUR_APP_KEY" \
    -H "X-Ovh-Consumer: YOUR_CONSUMER_KEY" \
    -H "X-Ovh-Signature: YOUR_GENERATED_SIGNATURE" \
    "https://api.ovh.com/1.0/sms/YOUR_SERVICE_NAME/senders/YOUR_SENDER/validate"
  

  A non-200 status code (like 400 for bad parameters or 403 for permission issues) will usually include a detailed error message that points to the root cause.

• Verify your OVH account and service status
  Log into your OVH customer portal to check:

  • If your SMS service has any pending payments or restrictions.
  • If there are active service alerts or outages affecting SMS verification in your region.

• Wait for regional delays or try an alternative sender type
  Some regions have SMS delivery delays (especially for international verifications). Wait 10-15 minutes before retrying. If you're using a phone number sender, try switching to a brand name sender (if allowed in your region) to see if the verification code comes through.

内容的提问来源于stack exchange，提问作者WorldTICR