---
title: "Add a co-teacher to all existing Google Classrooms via GAT Flow"
description: "With [GAT Flow's](https://gatlabs.com/knowledge/tech-tips/flow-overview/) functionality, [Google Workspace Admins](https://workspace.google.com/) and/or [Delegated Auditors](https://gatlabs.com/knowledge/tech-tips/gat-flow-delegated-auditor/) can perform mass actions that save time and streamline processes. One of them is to add a co-teacher to all existing Google Classrooms. One valuable task for educational domain administrators…"
url: "https://gatlabs.com/knowledge/tech-tips/add-a-co-teacher-to-all-existing-google-classrooms-via-gat-flow/"
updated: "2026-03-23"
category: "Classroom Audit & Management"
tags:
  - GAT Flow
---

# Add a co-teacher to all existing Google Classrooms via GAT Flow

With [GAT Flow's](https://gatlabs.com/knowledge/tech-tips/flow-overview/) functionality, [Google Workspace Admins](https://workspace.google.com/) and/or [Delegated Auditors](https://gatlabs.com/knowledge/tech-tips/gat-flow-delegated-auditor/) can perform mass actions that save time and streamline processes. One of them is to add a co-teacher to all existing Google Classrooms.

One valuable task for educational domain administrators or school principals is assigning multiple teachers to all existing Google Classrooms simultaneously in a single workflow. This can be achieved using the**'Add user(s) as a Co-teacher to existing Google Classrooms'** action in GAT Flow.

Here are the step-by-step instructions on how to assign additional teachers to multiple Classrooms efficiently.

## Create workflow

First, create a workflow by navigating to the **GAT Flow > Create workflow **(1) section.

In the **Workflow** fill in the details for the workflow. You can set it up also as an**Event workflow**.

- **Name** – enter the name of the workflow (2)
- **Description** – enter a description for the workflow (optional)
- **Type** – select what workflow type you would like to run
  - **Modify** – modify existing users (3)
- **Include suspended users** – enable or disable to allow you to select users who are currently suspended:
  - If enabled – you will be able to select even users who are suspended
  - If disabled – you will be able to select only users who are active
- **Run immediately after approval** – provides an option to schedule the workflow to run in a selected future time (optional)

Later click **Next** (4) to proceed.

![Creating a 'Add Co-teacher to all Classrooms' GAT Workflow](https://gatlabs.com/knowledge/wp-content/uploads/2024/01/2026-03-23-19_28_47.png)

## Select the users

In the next step, search for a user (1). Select one user or multiple user accounts that you wish to add as a Co-Teacher of the existing Google Classrooms (2). Search and add the users via** Search** for a user, group, org. unit, or classroom or import the users.

The chosen users will appear in the list below.

![Selecting users in a GAT Flow Workflow](https://gatlabs.com/knowledge/wp-content/uploads/2023/02/2026-03-20-12_00_44.png)

Once users’ emails are selected, click on **Next**(3).

## Chose actions

Then, under the **Choose Actions** section (1), click on the **(+) button** and search for the actions required to build up your workflow (2).

![Adding actions to a GAT Flow workflow](https://gatlabs.com/knowledge/wp-content/uploads/2024/08/2026-03-13-19_40_21.png)

You will see all the options available, search and select the below '**Add user(s) as a Co-teacher to existing Google Classrooms**' action (1) then double click the action node (2) to configure the settings.

![Adding the 'Add user(s) as a Co-teacher to existing Google Classrooms' to a workflow and double clicking the node.](https://gatlabs.com/knowledge/wp-content/uploads/2024/01/2026-03-23-19_37_44.png)

To add the users as co-teachers to all existing Google Classrooms, select '**Add to all**' option within that action. Changes made to the action are saved automatically, you can click outside the pop-up box or the X to continue.

!['Add user(s) as a Co-teacher to existing Google Classrooms' action settings](https://gatlabs.com/knowledge/wp-content/uploads/2024/01/2026-03-23-19_41_22-.png)

When ready, **Send approval request **(1).

![Send approval request on a GAT Flow workflow](https://gatlabs.com/knowledge/wp-content/uploads/2024/01/2026-03-23-19_43_06-1.png)

The Confirm! message will appear and ask as above:

![Confirmation pop-up on GAT Flow workflow](https://gatlabs.com/knowledge/wp-content/uploads/2024/01/2026-03-23-19_44_26-1.png)

Once confirmed, the request is now sent to the [Security Officer](https://gatlabs.com/knowledge/tech-tips/what-is-a-security-officer/) for verification, and once approved the job will run.

*NOTE: If you wish to add the users as Co-Teachers to a certain number of Classrooms (but not all), deselect the 'Add to all' option and select the given Classrooms under the '**Add to**' option.*

!['Add user(s) as a Co-teacher to existing Google Classrooms' action settings](https://gatlabs.com/knowledge/wp-content/uploads/2024/01/2026-03-23-19_46_12-.png)

## Security Officer verification

The [Security Officer](https://gatlabs.com/knowledge/tech-tips/what-is-a-security-officer/) has to approve the request. They will receive an email that leads them to the approval page in GAT Flow.

![GAT Flow Security Officer Approval Email](https://gatlabs.com/knowledge/wp-content/uploads/2024/01/Add-coTeacher-6.png)

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.

## Results

Once the action is launched, the users selected in the process will be assigned as co-teachers to all existing Google Classrooms.

Depending on the number of classrooms in the domain, the process may take some time before the selected users are assigned to all existing Google classrooms.

## Relevant posts

- [Changing the Owner of the Google Classroom with GAT Flow](https://gatlabs.com/knowledge/tech-tips/changing-the-owner-of-the-google-classroom-with-gat-flow/)
- [Create New Classroom and Assign Students in Bulk with GAT Flow](https://gatlabs.com/knowledge/tech-tips/create-new-classroom-and-assign-students-in-bulk-with-gat-flow/)
- [Create and Manage New Google Classrooms in GAT Flow](https://gatlabs.com/knowledge/tech-tips/create-and-manage-new-google-classrooms-in-gat-flow/)
