General parameters > Chapter Inventory > Parameter FIRWRKDAY (First work day of week) 

Use this parameter to define the first day of your organization's working week. 

Level of localization/Global variable

This parameter is defined at the level Site.It belongs to Chapter STO (Inventory) and the Group SCH (Planning),The following parameters are also associated with this chapter and group :

No global variable is associated with it.

Functions impacted

The following functions are associated with this parameter :

 Manufacturing > Planning > MPS processing

 Stock > Reorders > MRP processing

 Manufacturing > Planning > MRP processing

 Manufacturing > Planning > Demand forecasts

 Setup > Manufacturing > Scheduling

Comments

The defined working week start day is used in the Material Requirements Planning (MRP) and Master Production Schedule (MPS) calculations, ensuring that production planning allows for forecast horizons.