---
title: What are System and Data Profile variables?
description: "**System** variables are provided by the engine: e.g. UserInput, Payload, TimestampEpoch, TimestampHuman, ProfileName, ProfileMobile. **Data Profile** variables come from the contact’s data profile (Name, Phone, Email, FirstName, LastName, City, State, Country, ZipCode, Address, Gender, Currency, Language, DOB, CreatedAt, UpdatedAt). They are read-only and…"
url: "https://www.smsgatewaycenter.com/blog/kb/what-are-system-and-data-profile-variables/"
updated: "2026-03-07"
category: WhatsApp Business API / Workflow Builder
---

# What are System and Data Profile variables?

**System** variables are provided by the engine: e.g. UserInput, Payload, TimestampEpoch, TimestampHuman, ProfileName, ProfileMobile. **Data Profile** variables come from the contact’s data profile (Name, Phone, Email, FirstName, LastName, City, State, Country, ZipCode, Address, Gender, Currency, Language, DOB, CreatedAt, UpdatedAt). They are read-only and shown in Variable Management under their own tabs. Use them in message text, API params, and conditions for personalization.

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