661 questions with Microsoft 365 and Office | Development | Microsoft 365 Developer Program tags

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Can’t create a new Microsoft 365 Developer Sandbox after expiration

My previous Microsoft 365 Developer E5 sandbox expired on August 21, 2025, and was deleted on October 20, 2025. When I sign in to my Developer Program dashboard, I can still see the old environment listed as Deleted, but there is no option to set up a…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2025-10-21T11:01:33.79+00:00
Kgaogelo Mothogoane 0 Reputation points
commented 2026-02-04T01:46:52.9066667+00:00
Daniel Mena 0 Reputation points
2 answers

how to remove github already linked to microsoft 365 developer program account?

I am writing to request assistance with an issue linking my GitHub account to the Microsoft 365 Developer Program. When attempting to enrol, I receive the following message: “This account is already linked to a Microsoft 365 Developer Program account.…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-02-02T17:18:27.8566667+00:00
Moore, Janine (Branch Activist) 0 Reputation points
edited a comment 2026-02-04T00:02:24.88+00:00
TiNo-T 10,740 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Phone number already associated with an existing Developer Program account – need reset

Hello, I am trying to join the Microsoft 365 Developer Program, but I receive the message: “Your phone number is already associated with an existing developer account.” I no longer have access to the developer tenant that this phone number is linked to,…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-02-03T09:05:56.07+00:00
Ian John 20 Reputation points
accepted 2026-02-03T10:02:29.88+00:00
Ian John 20 Reputation points
1 answer

How I Remove the mobile number from the microsoft devloper account

how do i remove my phone number from my previous work accout but i have no Access of it

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-02-01T05:46:30.7066667+00:00
himanshu pratap 0 Reputation points
commented 2026-02-03T09:30:41.58+00:00
Jack-Bu 5,825 Reputation points Microsoft External Staff Moderator
2 answers

I did not enable multifactor for my 356 account but it is asking for authenticator code

I have developer program for microsoft 365. I failed to enable multifactor within the required date. But when I try to access my account, it is requiring verification code from authenticator that I don't have and cannot get. Help. Please.

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-02-02T22:57:04.63+00:00
Jaein Tak 0 Reputation points
edited an answer 2026-02-03T06:24:05.18+00:00
Matthew-P 10,095 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

Migrating MSA attached free monthly $150 Azure subscription to Dev Env of E5

Circumstances I got "MCT Developer Software & Services" VS subscription. Activated E5 dev env without Azure tenant. Tried to create a new subscription but was not successful. Was it by design? (Q1) Activated monthly $150 credit…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-28T07:37:08.6033333+00:00
Daun (Daniel) Lee 170 Reputation points
commented 2026-02-02T08:32:34.1133333+00:00
Dora-T 10,295 Reputation points Microsoft External Staff Moderator
1 answer

How can I assign and verify a Microsoft 365 E5 subscription after activation?

After activating a Microsoft 365 E5 subscription, I want to make sure it’s applied correctly. How can I assign the E5 license to users

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-30T00:14:09.57+00:00
Hanthorn Jeff 25 Reputation points
commented 2026-02-02T04:36:40.5133333+00:00
Teddie-D 11,590 Reputation points Microsoft External Staff Moderator
1 answer

How can I register for Developer Program

How can I register for E5 developer program ? Please show me step by step process

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-30T10:10:39.7+00:00
Gao Pengcheng 0 Reputation points
commented 2026-02-02T01:44:46.95+00:00
Matthew-P 10,095 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

How did I know Im qualified for E5 program

How did I know if I have been qualified for E5 program ? Personal experience or portfolio ? And how to submit it ?

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-28T14:19:01.95+00:00
Sandvig Dody 60 Reputation points
accepted 2026-01-30T14:49:49.12+00:00
Sandvig Dody 60 Reputation points
1 answer One of the answers was accepted by the question author.

Is it possible to enable full Microsoft Purview features in an E5 developer tenant?

I’m using a Microsoft 365 E5 developer tenant for development and testing, but some Purview features (eDiscovery Premium, Insider Risk, Advanced Audit) are unavailable or limited. Is there a way to request temporary or full access to these specific E5…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-30T13:08:31.3133333+00:00
Sandvig Dody 60 Reputation points
accepted 2026-01-30T14:09:07.5666667+00:00
Sandvig Dody 60 Reputation points
1 answer One of the answers was accepted by the question author.

How to activate Microsoft 365 E5 tenant after receiving confirmation email?

After receiving the confirmation email for the Microsoft 365 E5 program, I can sign in to the tenant and access the admin portal. However, several E5 features (such as Defender, Advanced Audit, and eDiscovery Premium) are either missing or still showing…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-29T09:41:40.4466667+00:00
Sandvig Dody 60 Reputation points
accepted 2026-01-30T14:08:59.6433333+00:00
Sandvig Dody 60 Reputation points
2 answers One of the answers was accepted by the question author.

Will a new Microsoft 365 Development tenant already be commercially activated - that is being capable to buy Copilot licenses)?

Hello, At the beginning of 2004 I got a development tenant thanks to the benefit in my Visual Studio Professional Subscription. It is not commercially activated and as a result I cannot buy a M365 Copilot license. In "Exciting new capabilities and…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-09T12:24:25.0566667+00:00
Oliver López Pérez 20 Reputation points
edited a comment 2026-01-29T16:16:22.7333333+00:00
Daun (Daniel) Lee 170 Reputation points
2 answers One of the answers was accepted by the question author.

Purchasing add-on to E5 Dev Env

I set up dev env of E5 licenses after Jan. 22, 2026. Tried to purchase add-on which was not successful. Learned that it was by design that no purchases available for dev env. And I encountered this article…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-28T07:43:45.3933333+00:00
Daun (Daniel) Lee 170 Reputation points
commented 2026-01-29T09:12:44.8933333+00:00
Gabriel-N 12,770 Reputation points Microsoft External Staff Moderator
1 answer One of the answers was accepted by the question author.

Can someone clarify the current Microsoft 365 E5 Developer Program renewal requirements

I need someone clarify the current Microsoft 365 E5 Developer Program renewal requirements, including what activities count toward keeping the sandbox active and common reasons an E5 developer subscription might expire unexpectedly?

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-25T05:05:05.5133333+00:00
Goodson Alyssa 20 Reputation points
accepted 2026-01-29T02:25:04.3966667+00:00
Goodson Alyssa 20 Reputation points
2 answers

MS-CorrelationId: [Moderator note: personal info removed] Code: 40901 how can I get back into my developer account

I have been trying to get into my Microsoft 365 Developer Program but cannot sign up as I receive the following error. We can't continue with the signup process for the following reason: Your phone number is already associated with an existing developer…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-22T09:34:19.5733333+00:00
commented 2026-01-28T10:55:24.93+00:00
Dora-T 10,295 Reputation points Microsoft External Staff Moderator
1 answer

How to reset the authenticator for the Microsoft E5 Developer Sandbox

I have lost access to the authenticator for my E5 Developer Account, and I've tried deleting my profile to sign up for it again later, but I've found out that somehow my subscription keeps on getting renewed. Any other way for me to regain access to my…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-26T20:16:25.6933333+00:00
Bacud, Danielle 0 Reputation points
commented 2026-01-28T06:29:56.11+00:00
Flora-T 10,220 Reputation points Microsoft External Staff Moderator
3 answers One of the answers was accepted by the question author.

SSL Certificate Chain Not Trusted When Connecting to SQL Server from .NET App

I’m developing a .NET application that connects to a SQL Server database over SSL, but I’m running into a trust issue with the certificate chain. The app is built with .NET 8 on Windows 11, and the SQL Server is on-premises (SQL Server 2019) with a…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2025-09-29T13:49:09.63+00:00
blom buffin 80 Reputation points
edited an answer 2026-01-27T23:10:33.06+00:00
Vergil-V 9,390 Reputation points Microsoft External Staff Moderator
2 answers One of the answers was accepted by the question author.

E5 Developer Program tenant, is it actually expired

My Microsoft 365 E5 Developer Program tenant is still marked for expiration even I still access. What usage criteria are required for automatic renewal, and how can this be verified?

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-22T00:07:56.2+00:00
Torres Julie 120 Reputation points
accepted 2026-01-27T08:01:27.7633333+00:00
Torres Julie 120 Reputation points
0 answers

Word Interop: EQ fields keep reverting Greek letters to default font even after setting Name/NameOther/NameAscii

I’m converting OMML (OMath) to EQ fields in a Word add-in (C#, .NET Framework 4.7.2, Word Interop). The issue: Greek letters inside the EQ field always fall back to the document’s default font (e.g., SimSun), even though I set all font slots (Name,…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-23T21:51:48.2433333+00:00
懿 刘 0 Reputation points
commented 2026-01-26T02:19:58.7033333+00:00
懿 刘 0 Reputation points
2 answers

Unable to join Microsoft 365 Developer Program Error Code: 40318 Country Code: +599 (Curaçao)

Issue: Unable to join Microsoft 365 Developer Program Error Code: 40318 Country Code: +599 (Curaçao) Details: Valid Curaçao mobile numbers are rejected as “not formatted correctly”, even though +599 is selectable in the country list. This blocks signup…

Microsoft 365 and Office | Development | Microsoft 365 Developer Program
asked 2026-01-23T23:35:00.5666667+00:00
chepa rojer 0 Reputation points
answered 2026-01-24T10:02:08.0166667+00:00
Gabriel-N 12,770 Reputation points Microsoft External Staff Moderator