Hello Alaeddine,
Check this list:
SFT3 - Maintain factory calendar Basis
OP03 - factory calendar C PP - Routing
OY05 - factory calendar Cross Application - Global Organization Customizing
OIZH - factory calendar PM - Plant Maintenance
OPJX - factory calendar C PP - Order Planning
OPDD - factory calendar PP - Capacity Leveling
OODK - Shift Planning: factory calendar Personnel Time Management - Shift Planning
OOFK - factory calendar Training & Event Mgmt - Training and Event Management
OVZ4 - C SD factory calendar SD - Basic Functions
Kind Regards,
Mariano