Meta WhatsApp Error Code 131021 (WABA Recipient Cannot Be Sender) — Sending to Your Own Number — Fix

Overview

Error code #131021 — "Recipient Cannot Be Sender". The sending and recipient phone numbers are the same. This is a simple request issue, common during testing.

Why This Happens

• You're trying to send a message to your own number (the same number that's sending).

What to Do

1. Use a different phone number as the recipient.
2. For testing, send to a separate test device or contact, not the business number itself.

Suggested Reply

The error you're seeing is Meta error code 131021 — it means the sender and recipient numbers are the same. WhatsApp doesn't allow a number to message itself. 🙂

What to do:

1. Send the message to a different phone number
2. If you're testing, use a separate device or contact

That'll clear it right away. Let me know if you need a hand testing! 😊