---
title: Why do I need to pick a mobile number field?
description: "Messages are sent to whatever value is in the field you choose, so the automation knows exactly where to send SMS, WhatsApp, Voice, or RCS for each new record. ### More Related Articles - [Can two connections use the same…"
url: "https://www.smsgatewaycenter.com/blog/kb/why-do-i-need-to-pick-a-mobile-number-field-2/"
updated: "2026-08-29"
category: Integrations / Salesforce CRM Messaging Integration / Connecting an Object
---

# Why do I need to pick a mobile number field?

Messages are sent to whatever value is in the field you choose, so the automation knows exactly where to send SMS, WhatsApp, Voice, or RCS for each new record.

### More Related Articles

- [Can two connections use the same object?](https://www.smsgatewaycenter.com/blog/kb/can-two-connections-use-the-same-object/)
- [Can I connect more than one object?](https://www.smsgatewaycenter.com/blog/kb/can-i-connect-more-than-one-object-2/)
- [Will connecting an object send messages to my existing records?](https://www.smsgatewaycenter.com/blog/kb/will-connecting-an-object-send-messages-to-my-existing-records/)

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