Hi Yassine,

PDP (MPS in English) and CBN (MRP in English) are basically the same processing.
But usually you don't use them the same way.

The theory would recommend:

- to use MPS for long term (for instance based on forecast only while neglecting the current stock and firm sales with a monthly bucket for the next 18 months). The output will be usefull to have some activity forecast for the year(s) to come.

- to use MRP for short and medium term (for instance based on firm sales only and obviously taking into account the current stock level with usually a bucket size mixing days and weeks on a total horizon of 6 months). The output will be usefull to take the decision what, when and how much to produce/purchase.

=> In this configuration, both processes are used on the same products.

However, quite often you can have a need to manage reording quite differently between puchase and produced goods (for instance the bucket size). In that case, it also possible to dedicate the MRP to puchased products and MPS to manufactured products. Doing so you are losing the ability to have the long term usage...

There's a lot of info out there on MRP vs MPS. Basically in X3, MRP can explode the BOM when creating work order suggestions depending on how the reorder policy is set up. MPS doesn't explode the BOM. Just really depends on your environment for which is more useful.

There's a lot of info out there on MRP vs MPS. Basically in X3, MRP can explode the BOM when creating work order suggestions depending on how the reorder policy is set up. MPS doesn't explode the BOM. Just really depends on your environment for which is more useful.

Just for the record, in Sage X3 the MPS will explode the BOM.