---
title: Can I test sender IDs in the Sandbox Account before using them?
description: "Yes, but with limits. The Sandbox Account at https://unify.smsgateway.center provides a default sender ID for testing. You can’t add custom IDs there—upgrade to a paid plan to use ones from \"Manage Sender ID.\" Test basic SMS flow in Sandbox, then…"
url: "https://www.smsgatewaycenter.com/blog/kb/can-i-test-sender-ids-in-the-sandbox-account-before-using-them/"
updated: "2025-02-25"
category: Bulk SMS / Sender ID
---

# Can I test sender IDs in the Sandbox Account before using them?

Yes, but with limits. The Sandbox Account at https://unify.smsgateway.center provides a default sender ID for testing. You can’t add custom IDs there—upgrade to a paid plan to use ones from "Manage Sender ID." Test basic SMS flow in Sandbox, then manage IDs fully post-upgrade. See more at [smsgatewaycenter.com/sms-types/](https://www.smsgatewaycenter.com/sms-types/).

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- [What happens if I delete a sender ID by mistake?](https://www.smsgatewaycenter.com/blog/kb/what-happens-if-i-delete-a-sender-id-by-mistake/)

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