QAD 2017 Enterprise Edition > User Guides > System Administration > Domain Constants > Maintaining Shop and Holiday Calendars
  
Maintaining Shop and Holiday Calendars
The shop calendar is required for planning and manufacturing modules. The calendar indicates what days the plant is open and how many hours are worked each day. This information is used:
To schedule start and due dates for MRP planned orders, master schedule orders, and work orders
To schedule operations for work orders and repetitive schedules
To schedule the procurement or shipment of materials through association with suppliers
Note: Other Enterprise Edition functions have module-specific calendars. For example, Customer Schedules, SSM Engineers, and Fixed Assets do not use the shop calendar described here.