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Power Automate - Notion connector stopped working on 2026-08-18 - error: API token is invalid

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Posted on by ZJ-24080948-0

Hi,

I use Power Automate - Notion connector to create calendar entries as Notion pages. It has been working without any issues for 1 year.

Since 18 August, it gives an error message: "API token is invalid".

I tried recreating the API access token in Notion, but nothing changed. Also, I tested the API connection via command prompt (curl) and it works well, so it is an issue with Power Automate.

I changed my Power Automate license from Free to Premium, but the issue is the same.

Any help is appreciated.

Best Regards, Zoltan

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11manish 4,407 Super User 2026 Season 2 on at

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Your testing already provides strong evidence that Notion is accepting the token and the problem is likely in the Power Automate connection/Notion connector

path. The most valuable next step is to test a brand-new Power Automate connection in a brand-new minimal flow. If that also fails with a token independently

verified by curl, stop regenerating tokens and escalate the connector issue to Microsoft.
ZJ-24080948-0 4 on at

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Thank you 11manish,
I wrote to Power Automate support and also to the creator of the Notion connector.
We will see what happens.
CU11071405-0 6 on at

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More like a connector side issue than a problem with your Notion token, especially since the same token works with `curl`. Try deleting and recreating the Notion connection in Power Automate and reauthorizing it completely. If that doesn’t help, check whether the connector had a recent update or outage around August 18, as the error may be coming from the connector itself.
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ZJ-24080948-0 4 on at

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Ok, so finally I have found the solution by myself, with some AI help.

The reason of the issue is this:
Because Microsoft activated its progressive Partner Center API and Entra MFA enforcement phases, Power Automate flows relying on traditional user accounts or "service accounts" without active MFA are getting blocked or disconnected.

Therefore, the Power Automate Notion connector is not usable anymore, as it does not support MFA.

However, there is a workaround: Instead of the Notion connector, you can switch to a Custom HTTP Action:

0. Since Notion's API endpoint is fully operational and the token itself is fine, you can completely bypass the broken native connector by using a standard HTTP action.
1. Go to your Notion Integrations Dashboard and copy your Internal Integration Secret (API Token).
2. Open your failing flow in the Power Automate Portal.
3. Add a new action and search for HTTP.
4. Configure the HTTP card based on the Notion task you need:
4a. Method: GET (to fetch data) or POST (to create pages/database entries)
4b. URI: Provide the specific Notion API URL (e.g., https://notion.com or https://notion.com{database_id}/query)
4c. Headers: Add these three mandatory keys:
4c1. Authorization: Bearer YOUR_NOTION_API_TOKEN
4c2. Notion-Version: 2022-06-28 (or your targeted version)
4c3. Content-Type: application/json
5. If creating a page or entry, pass your data mapping inside the Body field as a JSON object.

Let me also send you the parameters of the HTTP card in Power Automate that I used in my specific case (Creating a Notion page):

URI: https://api.notion.com/v1/pages
Method: Post
Headers:
Authorization: Bearer YOUR_NOTION_API_TOKEN
Notion-Version: 2026-03-11
Content-Type: application/json
Body:
{
"parent": {
"database_id": "YOUR_NOTION_DATABASE_ID"
},
"properties": {
"Name": {
"title": [
{
"text": {
"content": "test page title"
}
}
]
}
}
}