Supply User Manual ENG -> Products -> 3.8 MML / MSL -> A. Introduction
Introduction
The Medical Standard List (MSL) and Medical Master List (MML) are a critical part of MSF’s medical item management, including order management and stock management. Although there are rare cases of products belonging to Main type “LOG” being in MSL/MML, these lists are primarily made up of medical items and show the products which are OC Validated.
All levels of stakeholders (Activities, Projects, Missions & HQ) may be involved in the creation of an MSL. However, the MSL and MML data shown in UniField are managed in an MSL tool which is managed at HQ level. This tool was developed and is managed by the SPINCO team.
The list of products in a project MSL is made up of “ALPAs” (Standard list per each activity). The ALPAs of each project are consolidated to make an MSL. The level of “ALPAs” will not be visible in UniField. MSLs are the lowest level of detail which will be visible in UniField.
An MSL is always specific for one project (UniField instance) or Coordination. There is only 1 MSL version which is “published” (active) per project/instance. When all MSLs of a Mission are consolidated, this is referred to as a “Mission MSL”. The MML represents all products which have been “Validated” by the OC.
If a product is “de-validated” it will be removed from the OC MML and reflected in the updated published MSLs, although there may be a time lag in this meaning MSL will still contain it until next published MSL.

Restrictions
Certain products are considered “Validated” for the OC but are allowed to be used by certain restricted projects / missions only. They exist in the OC MML (and project MSL) but have “Restrictions” assigned. These can be “Mission restrictions” (product is considered as validated for all projects/instances belonging to specific mission) or “Project restrictions” (product is considered as validated only for the project/instance specified).
In one instance, it is possible for a product to be in both the MSL and also MML. It is possible for a product to be in an MML but not the MSL. It is possible for a product to be in neither MSL nor MML. Technically it is possible for a product to be in MSL but not MML, if an MSL has been published but the MML has de-validated the product.
MMLs can contain all types of UniData type products; Standard, Non-Standard and Non-Standard Local. They cannot contain products which are HQ, ITC or ESC or (non-UniData) Local products.