You have just been contacted for a replacement position in the Versailles academy, the contract is signed, and yet Arena refuses to let you in. This situation affects a large number of substitute teachers, whether contractual or temporary, because access to the portal does not activate at the moment the contract is signed. It depends on an administrative step that no one clearly explains to you over the phone.
Creating the Arena account: the blockage that substitutes discover too late
Even before discussing username or password, a substitute must check that their account actually exists in the academic system. The creation of the Arena account is not automatic upon signing the contract. It relies on a creation form that the administration of your assigned establishment must send to the rectorate.
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Without this form, no username is generated. You can wait for days in front of the login page without understanding why nothing works. If you find yourself in this situation, the first reflex is to contact the administration of the establishment to confirm that the form has indeed been sent.
To understand in detail the connection procedure for Arena Versailles, you need to distinguish between two scenarios that have emerged since the 2024-2025 school year, depending on the date your account was created.
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First connection to Arena Versailles: OTP or NUMEN depending on your situation
Since the start of the 2024-2025 school year, the Versailles academy has modified the method of account activation. Two procedures coexist, and knowing which one applies to you helps avoid going in circles.
Recent accounts: activation by one-time code
If your account was created recently, you will receive a one-time code sent via SMS or to your personal email address. This code is only for the first connection. It expires quickly, so enter it as soon as you receive it.
Did you provide a personal phone number during your recruitment? That’s where the code will arrive. If the number is incorrect or outdated, you will never receive the code. In this case, report it immediately to the IT department of the rectorate.
Older accounts: academic username and NUMEN
For accounts created before the switch to the OTP system, the classic method remains in effect. Your username consists of the first letter of your first name followed by your last name, in lowercase and without spaces. Your temporary password is your NUMEN, which consists of thirteen characters including four uppercase letters.
Concrete example: for Marie Durand, the username would be mdurand. In case of a namesake, a number is added (mdurand2). The NUMEN is found on your appointment notice or your recruitment letter.
Mandatory security via Macadam after the first connection
Successfully connecting for the first time is not enough. The Versailles academy now requires you to go through Macadam to permanently secure your access. Ignoring this step leads to a quick account lockout.
Macadam asks you for two things:
- Set a permanent password, different from the NUMEN or the temporary code used during the first connection
- Register a recovery phone number, which will be used in case of password loss
- Validate this information before closing the session, or you will have to restart the procedure from the beginning
Without this security, your account is likely to be locked within hours. Many substitutes postpone this step until the next day and find themselves blocked on their second login attempt.
Locked Arena account: how to quickly regain access
A locked account is the most common scenario among substitutes. Several incorrect password attempts, forgetting to secure via Macadam, or a poorly configured browser are enough to cause the lockout.
Resetting it goes through Macadam support or the IT department of the rectorate. The unlocking time is generally one to two working days, but it can be shortened if a valid mobile number is already registered in your academic file.
Before contacting support, check these often overlooked technical points:
- Clear your browser’s cache and cookies, as corrupted session data frequently blocks Arena authentication
- Temporarily disable content blockers (extensions like uBlock, Adblock) that may interfere with academic login forms
- Prefer a desktop browser over the mobile version, which regularly has display issues on the Arena portal
- Test with a different browser than the one you usually use, to isolate any potential compatibility issues
What you can do on Arena once connected
Once access is obtained, Arena provides access to several services grouped by sections. For a substitute, the most useful ones are found in the personal space and in the personnel management section.
The academic professional messaging (Webmail) is accessible from the personal space. It is through this messaging that replacement notifications, convocations, and communications from the rectorate are transmitted. Not checking it regularly may cause you to miss an assignment.
I-Prof, accessible via the “My HR file” section, allows you to view and complete your administrative file. Even as a substitute, it is in your interest to ensure that your information is up to date, especially for calculating your service seniority.
Colibris Versailles, also in “My HR file”, is used for career management procedures and common administrative requests. The directory of academic services, in the “Resources and tools” section, allows you to find the contact details of the right person in case of difficulty.
The Arena portal remains the unique entry point to all these tools. A substitute who secures their access from the first day of the contract avoids the cascading blockages that delay access to messaging, assignments, and administrative follow-up. The key lies in three steps: verify that the creation form has been sent, activate the account with the correct method, and go through Macadam without delay.