Sign in
Start Free Trial

Trello

Microsoft Planner

  • 12 min read

Table of Contents

Back to Home

Introduction

Altosio offers a great tool to migrate project management data from and to several vendors. It allows you to seamlessly switch from one software to the other, with a guarantee of no data loss.

The migration software runs in the cloud, so you do not have to worry about installing anything. Everything is accessible from your web browser at app.altosio.com

Key Benefits

The migration tool is reliable, secure and lightning fast.

What is migrated?

  • Workspaces
  • Boards
  • Personal boards
  • Permissions and memberships
  • Lists
  • Attachments with their metadata (created by, created at, modified by, modified at)
  • Cards
  • Task details including title, collaborators, assignees description, start date, due date, comments, attachments, completion, labels, covers, and checklists

What to consider?

Trello and Microsoft Planner are quite similar in shape. Your end users will not find any issue coping up with the changes as both tools look quite the same, and have almost the same functionalities.

Important Limitations

There are some small limitations that you might need to be aware of. These limitations are thoroughly documented in our limitations article

Security

Enterprise-Grade Security

The Altosio software runs in the Cloud and is hosted in Microsoft Azure data centers located in the US and the EU (Netherlands).

Altosio is able to provide you with a static IP address from which the migration will run in order to secure your environments with Firewall access accordingly. Please reach out to support@altosio.com to get it.

No Data Storage

The Altosio tool does not store anything internally. It reads data in chunks and pushes them in real time to the target. No data is cached or stored in the hard drive of the servers running the migration.

Altosio does however store the unique IDs of files and tasks/cards that are migrated. This allows the customer to rerun the migration without duplicating data.

Requirements

Trello Requirements

From Trello, you need to connect to your Trello account from the Altosio platform, and consent to the Altosio Trello application. This allows Altosio to read data from your Trello workspace.

Planner Requirements

  • An admin consent to use the Altosio Entra ID Application from your tenant (requires Global Admin)
  • Your tenant's domain (e.g., "company.com" or "tenant.onmicrosoft.com")
  • A migration account with a valid license for Microsoft Teams (e.g., E3, E5 license)

Licensing

Each board migration consumes a Standard Planner migration license. The license is automatically allocated to the board and will get burnt as soon as the Planner gets created in the target.

License Details

  • • License is board-based (not per user, task, or attachment)
  • • Supports delta passes for multiple migration runs
  • • Same license used across migration restarts
For licensing inquiries, please contact sales@altosio.com

Configuration

1. Sign up and create your first project

First, create an account at app.altosio.com, validate it through the verification email, and then log in. Once logged in, you’ll land on the home page where you can create your project. Click “New Project”, give it a meaningful name, and click create.

2. Create your connectors

a. Create your Trello connector

  • Click "New connector", choose "Source", then "Trello". Provide your Trello App Key and Token.

The creation of a Trello source connector automatically triggers a discovery job of your Trello environment, pulling the list of boards and user mappings.

b. Create your Planner connector

  • Click "New connector", choose "Source", then "Trello". Provide your Trello App Key and Token.

Click "New Connector", choose "Target", then "Planner". Provide your tenant name and domain, then click "Grant Admin Consent" to install the Entra ID Application.

Pre-migration assessment

Before running the migration, Altosio provides you with a way to assess your migration. The Audit task allows you to identify on each board if you will hit the limitations that exist between the two environments.

For more information about pre-migration assessment, please reach out to support@altosio.com

Migration

1. User mappings

Before running the migration, visit the Mapping table section of your project. You’ll find entries for your Trello users already prefilled. Add the equivalent email addresses of these users in Microsoft 365.

With an empty mapping table, the migration would still run, but the list of assignees will not be migrated correctly.

2. Understand the target fields

Target Plan Name

  • Display name of the Planner in the target, visible at tasks.office.com

Target Email Nickname

  • Email address of the Group/Team you're migrating to

Target Group Name

  • Display name of the Group/Team

Target Channel Name

  • Only for Teams migration - the channel where the plan tab will be created

3. Start Migration

Once configured, go to your Planner list page, select the boards you want to migrate, and click “Start”. The board will show a “Queued” status until processing begins, then switch to “Working”. Click “Details” to check logs and statistics.

Post-Migration

Delete the Altosio Entra ID Application

  • 1. Go to portal.azure.com
  • 2. Under Azure Services, click on Azure Active Directory
  • 3. On the left-hand side menu, click on Enterprise applications
  • 4. Find the Altosio application and click to open it
  • 5. Click Properties → Delete and confirm

Revoke the Trello token

  • Go to trello.com/my/account and under Applications, find the token and revoke it.

Support

Support is done by email at support@altosio.com or over Teams calls.

Need Help?

  • Altosio support team will assist you throughout your migration project and will be pleased to help you run a successful migration.
We have more than 10 years of experience in migrating software, building data pipelines and creating cloud services.
Linkedin-in Facebook-f X-twitter

Solutions

Resources

Company

© 2026 Altosio. All rights reserved.

info@altosio.com