I can't activate the trial period in Intune

Hello Jose,

The Intune error code 715-123280 usually appears when the tenant or account does not meet trial eligibility or sign-in prerequisites, most commonly when the Intune trial is not started from the official sign-up flow using a Microsoft Entra Global Administrator account, MFA is not fully configured, the tenant is suspended or blocked due to inactivity, or the MDM authority has not been set to Microsoft Intune after sign-up; to resolve this, make sure you start the trial from the official Intune sign-up page using an existing work or school tenant with Global Administrator rights, confirm MFA is enabled for the admin account, verify the tenant is active, and after activation check that the MDM authority is set to Intune in the Intune admin center, and if the error persists you will need to open a Microsoft support request with the error code and telemetry details so they can check backend provisioning logs.
Relevant guidance is available at Start a free Intune trial https://learn.microsoft.com/mem/intune/fundamentals/free-trial-sign-up, Intune prerequisites and planning https://learn.microsoft.com/mem/intune/fundamentals/planning-guide, and Open a Microsoft support request https://learn.microsoft.com/microsoft-365/admin/get-help-support

Error code 715-123280 and the related telemetry (EventId, SID, cV) are not documented in the provided materials. However, the context does cover how Intune trials work and common blocking conditions. Use the following checks and workarounds that are supported by the documentation:

1. Confirm eligibility and sign-up path

• Intune offers a 30‑day free trial that must be started from the official Intune sign-up page: use the link provided in the Intune service description to start the trial: “To start your free trial, go to the Intune Sign up page.”
• If the organization already has a Microsoft Online Services work or school account and this Intune subscription might be used in production, the Global Administrator must select Sign in on that page and authenticate with the existing Microsoft Entra Global Administrator account so the trial links correctly to the existing tenant.
• If there is an Enterprise Agreement or similar volume licensing agreement, the trial must be set up through the Microsoft representative.

2. Verify prerequisites before retrying The Intune free-trial setup requires that tenant and connectivity prerequisites are satisfied:

• Device/browser support: ensure a supported browser and OS are used as per “Supported operating systems and browsers.”
• Network endpoints: ensure required Intune service endpoints are reachable as per “Network endpoints for Microsoft Intune.”
• Multifactor authentication (MFA): as of October 15, 2024, Azure sign-in to Intune admin center requires MFA for all users, including trial tenants. Ensure MFA is configured for the account used to start the trial (for example via Conditional Access, the MFA wizard in Microsoft 365 admin center, or Entra ID security defaults). If MFA is not set up or cannot complete, the trial activation can fail.

3. Check for tenant or account suspension / inactivity

• If the tenant or account is suspended or blocked, Intune enrollment and trial operations can fail. For example, error 0x80cf0440 indicates a suspended trial or paid account and requires creating a new trial or paid account and re-enrolling.
• If the Azure tenant has been blocked due to inactivity, the documented resolution is to go back through the Azure signup flow (for example, via the Azure signup page) and follow the prompts to reactivate/upgrade the account so that services can be used again.

4. Ensure correct role and sign-in account

• The Intune trial and MDM authority configuration must be done by an account with the Microsoft Entra Global Administrator role (for initial linkage of Intune to an existing tenant) or the Intune Administrator role for Intune configuration.
• After the trial is created, confirm that the MDM authority is set to Microsoft Intune in Intune admin center → Tenant administration → Tenant details. If an orange banner appears saying the MDM authority is not set, select it and set Choose MDM Authority to Intune MDM Authority before attempting device enrollment or further Intune use.

5. If activation still fails, contact Microsoft support Because the specific 715‑123280 code is not documented and the error includes internal telemetry (EventId, SID, cV), the next step is to involve Microsoft support so they can look up the failure in backend logs:

• If already have access to a Microsoft 365 tenant (even a separate one), sign in to the Microsoft 365 admin center as Global or Billing administrator and use Support → Help & support to open a ticket describing the Intune trial activation failure and include the error code, EventId, SID, and cV.
• If there is no existing tenant with admin access, create a temporary Microsoft 365 trial tenant (as described in the Q&A guidance) solely to reach the admin center and open a support request. Clearly state that the problem is with Intune trial activation on another tenant and provide the error details.

Support can then verify whether the tenant is blocked, whether there is a regional or eligibility restriction, or whether a backend provisioning issue is preventing the Intune trial from being created, and correct it.

References:

• Microsoft Intune service description
• Step 1 - Sign up for a free trial and configure a Microsoft Intune tenant
• Troubleshooting device enrollment in Intune
• I cant log in to my business account because it is requiring Authenticator app which I do not have - Microsoft Q&A
• I have a Micrsoft business account and I am the admin and the only user registered under this account. I can't log in because i have replaced my phone and the authenticator doesn't work. - Microsoft Q&A
• Error message: AADSTS5000225: This tenant has been blocked due to inactivity. - Microsoft Q&A