--- title: Automatically Generate a User ID during Onboarding Process via GAT Flow description: "**GAT Flow** can assist with the automatic generation of a User ID for every newly created user. An Admin can achieve that in two simple steps outlined below. ## Create Custom attribute titled User ID Make sure to create a…" url: "https://gatlabs.com/knowledge/tech-tips/automatically-generate-a-user-id-during-onboarding-process-via-gat-flow/" updated: "2026-07-20" category: "Users Audit & Management / On-boarding, Off-boarding & Modifying" tags: - GAT Flow --- # Automatically Generate a User ID during Onboarding Process via GAT Flow **GAT Flow** can assist with the automatic generation of a User ID for every newly created user. An Admin can achieve that in two simple steps outlined below. ## Create Custom attribute titled User ID Make sure to create a relevant custom attribute titled **User ID** if doesn't exist yet on your domain. To do so, navigate to **GAT Flow > Custom attribute > Create attribute** ![Creating a new custom attribute in Flow](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-12_20_19.png) Next, start configuring the relevant attribute: - **Name** - apply the name to the newly created custom attribute: User ID - **Fields**: - **Name**: User ID - **Type**: Text - **Multi valued** - enable the option to allow multi values to be applied to the attribute - **Read access type** - select one of the options: - Only administrators and associated user can see the values - Any user in your domain can see the values Once all is ready, **Create**the custom attribute. ![Creating a new custom attribute 'User ID' in Flow](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-12_40_37.png) Now the creation is completed and the custom attribute: User ID exists and can be used in the second step during the onboarding process to automatically generate newly created users' IDs. ## Onboard and auto-generate User IDs To onboard new users, navigate to **GAT Flow > Create workflow** Type workflow name, select workflow type: **Onboarding**, and click on **Next**. ![Creating a workflow to 'Onboard and auto-generate User ID'](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-12_52_01.png) In the next step, **Customize Onboarding**. Select the domain name and generate an email template. Decide whether you wish to auto-generate the user's password or add it manually in the next step. ![Customizing onboarding in Flow](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-13_00_17.png) Next, proceed with adding the users, either individually **Add new user** or via the **Import users** option. [See how to use **Import user** option here. ](https://gatlabs.com/knowledge/tech-tips/how-to-onboard-google-workspace-users-in-bulk/) To manually add a new user click on **Add new user** button. Add mandatory information as follows: **First Name** and**Last Name**. If you decided not to generate a password in the earlier stage, create one now under the **Password** field. **The email** field will be prefilled based on the previously provided information. When ready, **Next**. ![Creating a user in Flow](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-13_08_25.png) Then, to choose actions, click on the **(+) button** and search for the action. ![Adding an action to a workflow](https://gatlabs.com/knowledge/wp-content/uploads/2022/11/2026-06-17-13_11_31.png) Next, you will see all the options available, search and select the below action: ![Adding the 'Set user custom attribute' action to a workflow](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-13_30_45.png) When selected, complete the action settings as follows: - **Custom attribute** - select pre-defined in the first step custom attribute '**User ID - User ID**' (attribute will auto-populate in the field once configured earlier) - **Override old values** - enable the option (optional during the onboarding process as there is no value to override yet) - Value 1 - to apply relevant value, click on the User ID variable available under the PREDEFINED variables above. Click on {{ id }} variable which copies the variable, and go back to the Value 1 field and past it there ![Configuring the 'Set user custom attribute' action settings](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-13_42_43.png) Once ready, **Send approval request**. ![Send approval request confirmation pop-up](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-13_54_26.png) Once confirmed. the request is now sent to Security Officer for verification, and once approved the job will run. ## Security Officer approval Email notification is delivered to the Security Officer. They can review the request by clicking on the link from the email that brings them to the GAT Flow Approval tab in GAT Flow. They can approve or deny the request from there. ![Security officer approval email request](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-13_58_54.png) ## Results When the request is approved by Security Officer, a workflow requested/Admin received a confirmation email when the process has been finished. ![Workflow finished email notification](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-14_04_56.png) The details can be viewed by clicking on the Workflows section and clicking the page icon. ![Workflow results](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-14_06_30.png) As a result of that, a new user is created, and their User ID is autogenerated. To view a particular user's User ID, navigate to **Domain > Users > Edit > Custom Attributes** tab. ![Custom attribute on users account](https://gatlabs.com/knowledge/wp-content/uploads/2023/07/2026-07-20-14_13_17.png) ## Related posts - [Update the user’s custom attributes with GAT Flow](https://gatlabs.com/knowledge/tech-tips/update-the-users-custom-attributes-with-gat-flow/) - [Setting Users’ Custom Attributes with GAT Flow](https://gatlabs.com/knowledge/tech-tips/setting-users-custom-attributes-with-gat-flow/)