Using calendars

To use a calendar ( calendar code/ availability type), you must link it to a resource. To view the available combinations of calendar codes and availability types, start the Calendar Availability Types (tcccp0150m000) session. You can sort the records by calendar code or by availability type.

Search path

If a package in LN requires calendar data for some resource, LN searches for an applicable calendar code for that specific resource. If no calendar is linked to that resource, LN searches for calendars at higher resource levels, up to the company calendar.

For example, in Manufacturing, LN checks whether a calendar code is linked to a work center. If no calendar code is linked to the work center, LN checks the production department. If LN does not find a calendar code, no planning takes place.

Note: The search path does not include the workweek. LN only uses the workweek if a calendar code was found that does not cover all relevant dates.

Calendar data in LN

This table shows how to link calendars to the most general resources:


To do this...	Use this session...
To define the company calendar	Companies (tcemm1170m000)
To define an enterprise unit's calendar	Enterprise Units (tcemm0130m000)
To define a department's calendar	Departments (tcmcs0565m000)
To define an employee's calendar	Employees - General (tccom0101m000)

The following sections show how to use calendars in various parts of LN.

People

In the People module, you can link calendars to teams of employees.

For more information, refer to Calendars in People.

Warehousing

In Warehousing, you can use calendars to indicate the opening hours of warehouses.

For information on how LN calculates the planned delivery date and the planned receipt date of a warehousing order, refer to Determination of calendar correction

For information on how LN calculates the planned delivery date and the planned receipt date for replenishment of warehouses by using time-phased order point (TPOP) or statistical inventory control (SIC), refer to the following topics:

To generate orders (TPOP)
To generate order advice (SIC)

Freight

In Freight, you can use calendars to specify the opening hours of a ship-from address or ship-to address.

For more information, refer to Calendar time-windows.

Manufacturing

Each work center can have a calendar. If a work center has no calendar, planning functions for this work center default to the mandatory calendar of its production department.

For more information, refer to Calendars in Manufacturing.

Project

Project uses external scheduling packages for employee planning and equipment planning. The external scheduling package retrieves the calendar data from Calendars and Periods in LN.

For more information, refer to Calendar integration with external scheduling packages.

Service

In Service, you use calendars to specify when a cluster is available for servicing, and to define when a service department is available to perform service activities.

For more information, refer to To use calendars in service.

Enterprise Planning

In the planning processes, Enterprise Planning uses the calendars that you linked to work centers, warehouses, and so on.

To simulate a reduced or increased production capacity, you can overrule the default calendars with alternatives for a specific scenarios. This allows for a different version of the working hours for each scenario. With these scenarios, you can analyze the consequences of adding an extra machine or taking a machine out of service for maintenance.

For more information, refer to Calendars in Enterprise Planning.

Financials

In Financials, you can use payment calendars to determine the due dates for sales invoices and purchase invoices.

For more information, refer to:

To use payment calendars
Payment calendars setup