M365 Connector for Claude by Anthropic

Question

M365 Connector for Claude by Anthropic

Emmanouil Lemonakis 0

Hi

When I try to install the M365 Connector for Claude by Anthropic, I get the message: "We are unable to initiate the deployment." To deploy the app, go to the website where it is hosted.

I am in the Netherlands, have all the required admin rights, I have both my cluade account and my micorsoft admin account under the same email and have already installed the PowerPoint and Excel apps without any issues.

Moreover, when I go to the connector’s directory in claude, I cannot find anywhere the Microsoft 365 connector. I would like to move to a paid plan however I need to be able to connect my 365 Microsoft outlook with Claude otherwise it does not have meaning.

Thanks

Emmanouil

Claude1

Micorsoft

Emmanouil Lemonakis 0 Reputation points

2026-04-18T09:26:09.79+00:00

I also got the below answer from Claude support (not uhuman).
The Microsoft 365 connector not appearing in your connectors list is likely due to the specific requirements for this integration. Unfortunately, there isn't a direct link to access the connector - it must appear in the standard connectors directory at https://claude.ai/customize/connectors.[[1]](https://support.claude.com/en/articles/12542951-enable-and-use-the-microsoft-365-connector"Enable and use the Microsoft 365 connector")

The Microsoft 365 connector requires a work Microsoft 365 account tied to a Microsoft Entra tenant (any Microsoft Business plan), which you mentioned you have. However, there's an important prerequisite: a Microsoft Entra Global Administrator in your tenant must complete a one-time consent process to authorize the integration before the connector becomes available to anyone in your organization.

Since you can't see the connector in your directory, it's likely that this Global Administrator consent hasn't been completed yet for your tenant. The Global Administrator needs to either connect to Microsoft 365 in their own Claude account first, or complete a manual setup process in Microsoft Entra ID.

Once the Global Administrator has granted this consent, the Microsoft 365 connector should appear in your connectors list at the standard location, and you'll be able to connect using your work account credentials.

You'll need to coordinate with your Microsoft Entra Global Administrator to complete this initial authorization step for your organization.

Any idea how to do the above?
Emmanouil Lemonakis 0 Reputation points

2026-04-18T09:31:20.25+00:00

Now i am getting new istructions from claude:
Option 2: Manual setup in Microsoft Entra ID

If you prefer to handle this through the Entra admin center:

1.     Use Microsoft Graph Explorer to add the required service principals through the appropriate API endpoints

2.     Grant admin consent through the Microsoft Entra ID admin center by navigating to the consent flow for the necessary applications

3.     After completing the consent process, return to Claude and navigate to Customize > Connectors to find and connect Microsoft 365

Any idea how to do this?

1 answer

Your answer

Emmanouil Lemonakis 0 Reputation points

2026-04-18T09:26:09.79+00:00

I also got the below answer from Claude support (not uhuman).
The Microsoft 365 connector not appearing in your connectors list is likely due to the specific requirements for this integration. Unfortunately, there isn't a direct link to access the connector - it must appear in the standard connectors directory at https://claude.ai/customize/connectors.[[1]](https://support.claude.com/en/articles/12542951-enable-and-use-the-microsoft-365-connector"Enable and use the Microsoft 365 connector")

The Microsoft 365 connector requires a work Microsoft 365 account tied to a Microsoft Entra tenant (any Microsoft Business plan), which you mentioned you have. However, there's an important prerequisite: a Microsoft Entra Global Administrator in your tenant must complete a one-time consent process to authorize the integration before the connector becomes available to anyone in your organization.

Since you can't see the connector in your directory, it's likely that this Global Administrator consent hasn't been completed yet for your tenant. The Global Administrator needs to either connect to Microsoft 365 in their own Claude account first, or complete a manual setup process in Microsoft Entra ID.

Once the Global Administrator has granted this consent, the Microsoft 365 connector should appear in your connectors list at the standard location, and you'll be able to connect using your work account credentials.

You'll need to coordinate with your Microsoft Entra Global Administrator to complete this initial authorization step for your organization.

Any idea how to do the above?
Emmanouil Lemonakis 0 Reputation points

2026-04-18T09:31:20.25+00:00

Now i am getting new istructions from claude:
Option 2: Manual setup in Microsoft Entra ID

If you prefer to handle this through the Entra admin center:

1. Use Microsoft Graph Explorer to add the required service principals through the appropriate API endpoints

2. Grant admin consent through the Microsoft Entra ID admin center by navigating to the consent flow for the necessary applications

3. After completing the consent process, return to Claude and navigate to Customize > Connectors to find and connect Microsoft 365

Any idea how to do this?

Answer 1

Dear @Emmanouil Lemonakis,

I hope you’re having a good day.

Thank you very much for taking the time to describe the issue so clearly and in such detail. I’ve reviewed everything you shared, including the behavior you’re seeing in Claude, the error message during deployment, and the guidance you received from Claude support. Based on that, it’s clear you’ve already done the right checks on your side.

Before going further, please note that this forum is not Microsoft Support. It’s a community space where users help one another by sharing experience and guidance based on Microsoft documentation and real‑world scenarios. As a forum moderator, I don’t have access to your tenant, accounts, or internal systems, and I can’t make changes on your behalf. That said, I’ve looked into this scenario carefully and want to point you in the most accurate direction.

From everything you’ve described, there is no indication of a configuration or permission issue in your Microsoft 365 tenant. You are a Global Administrator, other Microsoft apps deploy correctly, and there are no signs of tenant restrictions or regional limitations. The behavior you’re seeing, especially the connector not appearing and the deployment failing to initiate, strongly suggests a backend integration issue rather than a front‑end or admin misconfiguration.

At this point, the most effective and appropriate next step is to open a support ticket through the Microsoft 365 Admin Center. This is important because the backend support teams have access to diagnostic tools, service telemetry, and integration logs that are not visible from the admin UI or to forum moderators. They can verify whether the Microsoft side of the connector registration, consent handshake, or enterprise application creation is failing silently or not being triggered correctly.

You can raise support ticket from Microsoft 365 Admin Center>Support>Help & Support.

For reference:  Get support | Microsoft Docs  

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Raising a ticket through the admin center also ensures that your request is routed to the correct backend engineering or escalation team, rather than being treated as a general “how‑to” question. This is especially relevant for third‑party integrations that rely on Microsoft Entra, Microsoft Graph, and consent flows, where issues may not surface as explicit errors in the UI.

When creating the ticket, I recommend clearly stating that:

You are a Microsoft Entra Global Administrator
The Microsoft 365 connector for Claude does not deploy or appear as expected
You are encountering a deployment initiation failure
You believe this may be a backend or integration‑level issue rather than a permissions problem

This will help the support team focus their investigation quickly and avoid unnecessary back‑and‑forth.

I understand this isn’t the most immediate resolution, but in cases like this, backend support is the only channel with the right visibility and authority to move things forward accurately. Continuing to troubleshoot only from the UI or attempting manual workarounds is unlikely to resolve it.

I hope this information helps point you in the right direction. If you receive an update from Microsoft Support and want help interpreting their response, feel free to share it here and I’ll do my best to assist further.

Looking forward to hearing back from you with any updates or additional details.

Warm regards,

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Emmanouil Lemonakis 0 Reputation points

2026-04-18T18:14:35.7233333+00:00

Thanks a lot Liora for your help.
Liora D 18,910 Reputation points Microsoft External Staff Moderator

2026-04-19T07:42:42.9733333+00:00

Hi Emmanouil Lemonakis,

You’re very welcome, I’m glad the explanation helped.

I appreciate how clearly you described the issue from the start; that made it much easier to look at this carefully and rule out the common configuration and permission causes. Hopefully the next step with support will give you a clear answer on what’s happening behind the scenes.

Wishing you a smooth resolution, and thanks again for following up.