Why am I getting an “Invalid Country” error on WhatsApp 24 Message Template App? Follow

This error usually appears when the WhatsApp phone number format doesn’t match the selected country in the app. The system validates the phone number using international dialing standards, so if the number format is incorrect, it won’t be accepted.

How to fix it

Make sure the phone number is entered in full international format:

• [country code] [number without the leading 0]

Example:
For a U.S. number → +1 2345667890

Special country formats

Argentina
If your local number is: 11 15 1234 XXXX
Enter it as: +54 9 11 1234 XXXX

Explanation:
+54 = Country code for Argentina
9 = Required mobile indicator (for WhatsApp international format)
11 = Area code
15 is removed (it’s only used locally)

Mexico
If your local number is: 55 1234 XXXX
Enter it as: +52 1 55 1234 XXXX

Explanation:
+52 = Country code for Mexico
1 = Required digit for mobile numbers
55 = Area code

Summary

• Always include +country code.

• Remove leading 0s and local prefixes (such as 15 in Argentina).

• For Argentina and Mexico, add the special mobile indicator (9 or 1).

Still getting an error?

Check that:

• The selected country in the app matches the phone number entered.

• The number is active and registered on WhatsApp.

If the issue continues, contact support and include:

• The country name

• The phone number you tried (for privacy purposes, you can replace the last four digits with XXXX)

• A screenshot of the error