The "33: Parameter Value Is Not Valid" error occurs when the business phone number in your API request has been deleted or is no longer valid. This blog provides actionable steps to resolve the issue efficiently.

What Causes This Error?

  1. The business phone number used in the API request has been deleted from the WhatsApp Business Account (WABA).

  2. A typo or incorrect phone number was entered in the API request.

How to Resolve?

1. Verify the Business Phone Number

Ensure the phone number included in the API request is correct and active.

  • Log in to Meta Business Manager.

  • Navigate to the WhatsApp Accounts > WhatsApp Manager > Phone numbers section.

  • Confirm the listed phone numbers under the associated WhatsApp Business Account.

2. Update the API Request

If the number is incorrect, update your API call to include a correct valid number.

3. Add a New Phone Number

If the business phone number has been permanently deleted:

  • Log in to Meta Business Suite.

  • Go to the Meta App Dashboard > WhatsApp > API Setup section.

  • Add a new phone number and complete the setup process.

4. Test the API Request

After verifying or updating the phone number, resend the API request to ensure it works correctly.

For more insights on navigating errors while using WhatsApp Business API, check out our other blogs at heltar.com/blogs.