Can't create M365 E5 Test Tenant via Developer Programm

Joshua Höllerer 15 Reputation points
2025-02-26T11:42:04.1233333+00:00

Hello,

i want to enable my M365 E5 Test tenant from Microsoft Developer Programm. I have an Visual Studio Pro License, after i start the process and type in the user data and domain for the test tenant i get the following error message:

We're unable to complete this request

Your request has been rejected because some of your information is invalid

Code: 40354

Microsoft 365 Developer Program
Microsoft 365 Developer Program
Microsoft 365: Formerly Office 365, is a line of subscription services offered by Microsoft which adds to and includes the Microsoft Office product line.Developer Program: A Microsoft program designed to help developers build cross-platform productivity experiences by giving them access to a developer subscription, sample data packs, documentation, training, experts, recommendations, and community events.
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  1. DOUG PETERMAN 0 Reputation points
    2025-03-05T18:14:09.18+00:00

    were you able to get past this issue?


  2. Joakim 0 Reputation points
    2025-03-15T21:44:34.0333333+00:00

    At first it said this:

    Your request has been rejected because some of your information is invalid.

    MS-CorrelationId: 00000000-02d1-4f02-b38c-81c7f08171ce

    Code: 40354

    Then after a few tries during the weekend to get it working:

    "Your phone number is associated with an existing developer account."

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