---
title: What does INVALID_SENDERID (Invalid SenderId) mean?
description: "The **sender ID (Sender ID / From) you used is not valid** for this route or recipient - for example not registered, not approved, or not allowed for the message type. The message was not delivered. **What you can do:** Use a sender…"
url: "https://www.smsgatewaycenter.com/blog/kb/what-does-invalid_senderid-invalid-senderid-mean/"
updated: "2026-05-07"
category: "Bulk SMS / Errors & Error Codes"
---

# What does INVALID_SENDERID (Invalid SenderId) mean?

The **sender ID (Sender ID / From) you used is not valid** for this route or recipient - for example not registered, not approved, or not allowed for the message type. The message was not delivered.

**What you can do:** Use a sender ID that is approved and valid for your account and the destination. Check your Sender ID list and route configuration.

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