Backlog Planning Modes

Specify a backlog planning mode to control which supply and demand attributes are evaluated when supply availability is being considered. There are three modes:

• the Infinite Availability Based mode

• the Lead Time Based mode

• the Supply Chain Availability Search mode

Infinite Availability Based mode

You use this mode when your supply is for items that are easily available or of low value. Here are the attribute considerations in this planning mode:

• The item is planned on the requested date irrespective of availability.

• No availability search is performed.

• Calendars are respected during planning.

• The backlog planning engine doesn't generate any pegging.

• Transit time constraints are respected; therefore, requests within transit lead times are planned after accounting for the transit lead time. No other attributes are associated with this mode.

Lead Time Based mode

You use this mode when your supply is for items that are made-to-order. Here are the main attribute considerations of this planning mode:

• Orders are planned after a specified lead time, as planned dates are always offset from the requested date by the specified lead time.

• No supply availability search is performed.

• Lead time can be specified in multiple ways.

• The backlog planning engine doesn't generate any pegging.

• Calendars and transit time constraints are respected.

When you create backlog planning rules in lead time planning mode, you use one of these lead time attributes:

• Total lead time

• Cumulative manufacturing lead time

• Cumulative total lead time

• User-defined lead time

Supply Chain Availability Search mode

You use this mode when your supply is for items that are of high value or highly constrained. Here are the main features of this planning mode:

• A detailed availability search is performed across supply chain depending on the options that you select when you create the rule.

• Pegging information is generated by the engine.

• Lead times, calendars, capacities, transport modes, and supply chain network are considered during planning.

When you create backlog planning rules in supply chain availability search mode, you make specifications to control several aspects of the search. Here's what you specify:

• Whether the process must search components and resources

• Which types of supply and demand it must consider

• Which lead time it uses for the infinite availability fence

• The time fence for considering past-due demand and past-due supply