---
title: Validation Rules / Workflows
slug: voice-german/validation-rules-workflows
docTags: 
createdAt: 2024-03-13T15:34:57.097Z
---

If you need a task validation or workflow rule to identify, if an activity was created by CTI Data Connector for Salesforce®, use the field: **Internal** **Call ID **(custom field - API name: *Mirage\_\_Mirage\_Call\_ID\_\_c*).

This field is a unique ID for a phone call and is **empty if the activity was manually created.**