GTM Extranet and My HR Box frequently appear in the searches of La Poste agents, as if one had to choose between two distinct tools. The technical reality is more nuanced: these two names refer to two layers of the same system. Comparing their respective scopes helps to understand what each layer covers, and especially what changes depending on the user’s profile.
GTM Extranet and My HR Box: access portal or business application
The most common confusion is to oppose GTM Extranet to My HR Box as two competing platforms. GTM Extranet is the technical authentication foundation, the secure entry point. My HR Box is the business application that appears once the connection is established.
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In practice, an agent does not choose between one or the other. They go through GTM Extranet to identify themselves, then access My HR Box to manage their leave, view their pay slips, or download administrative documents. The GTM portal manages the security layer (username, password, security question), while My HR Box concentrates on daily HR functionalities.
To better understand the role of each component, particularly according to your status within the group, the GTM La Poste application for HR details the differences in scope between the two layers.
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Comparison table: GTM Extranet vs. My HR Box
The table below summarizes the roles, access, and limits of each layer for an agent connecting from outside the La Poste internal network.
| Criteria | GTM Extranet | My HR Box |
|---|---|---|
| Main role | Authentication and security | HR management (leave, absences, documents) |
| Type of identifier | Internal HR identifier | Same identifiers (provided via GTM) |
| Access outside internal network | Yes (portal exposed to the Internet) | Yes (via GTM Extranet only) |
| First connection | Password creation + security question | No additional configuration |
| Password reset | Dedicated form on GTM | Not available (redirects to GTM) |
| Support in case of issues | [email protected] | Manager or local HR |
This breakdown shows that connection issues always fall under GTM Extranet, never under My HR Box. A forgotten password, a blocked identifier, a lost security question: everything is resolved on the GTM portal side.
Access based on status: civil servant, private sector employee, or contractor
The type of identifier and the level of access directly depend on the contractual status. The online content focuses on the connection mechanics without detailing this differentiation, which has practical consequences.
- Civil servants and private sector employees of the La Poste group have an internal HR identifier assigned upon hiring, which grants access to all functionalities of My HR Box (leave balances, absence requests, pay slips, certificates).
- Some contractors or temporary workers associated with La Poste have only partial access, limited to a few sections, depending on the terms of their contract and their hierarchical attachment.
- Other external profiles simply have no access to My HR Box, even if they work daily in the group’s premises.
Status determines the functional scope visible in My HR Box. A contractor who does not see the leave tab is not experiencing a technical bug: their profile does not include this functionality.
Cybersecurity of the GTM Extranet portal La Poste
GTM Extranet is a business portal exposed to the Internet, which subjects it to enhanced security constraints. The architecture has been designed to allow agents to connect from home or a personal device, without going through the La Poste internal network.
The login page uses a virtual keyboard for password entry. This mechanism limits risks associated with keyloggers (software that records keystrokes). A sound version of the keyboard is available for visually impaired agents, which can be activated via a dedicated button before the numeric keypad.
The security question remains the main safety net in case of password loss. If this answer is also forgotten, the procedure requires contacting HR support via email. No automatic recovery mechanism via SMS or third-party application is offered.
Best practices for access from outside
Accessing My HR Box from a public Wi-Fi network (train station, hotel, café) exposes the session to potential interceptions. Using a home network or a personal mobile connection reduces this risk. It is also recommended never to save the password in the browser of a shared device.
What to do when the connection to My HR Box fails
The majority of blockages reported by agents concern the GTM Extranet layer, not My HR Box itself. Identifying the correct layer avoids wasting time with the wrong contact.
- Forgotten password: use the reset form on the GTM Extranet page (link “Password reset request”), providing the HR identifier.
- Forgotten security question or inaccessible email: contact support directly at [email protected], specifying your identifier and situation.
- Missing functionality after login: check your status with your local HR, as partial access is normal for some profiles (contractors, temporary workers).
The distinction between an authentication issue (GTM) and a functional scope issue (My HR Box) remains the first reflex to adopt. An agent who understands this two-layer architecture resolves most situations without waiting for a response from support.