Assignment Sets, Sourcing Rules, and Bills of Distribution
You use assignment sets in a Supply Chain Planning work area to link sourcing rules and bills of distribution to items.
Using sourcing rules, bills of distribution, and assignment sets together, you can specify how material is supplied, manufactured, and transferred across a supply chain.
When you create sourcing rules and bills of distribution, you create descriptions of the means by which you can replenish items. However, items aren't specified anywhere on the definition forms, and so a defined sourcing rule or bill of distribution can later be assigned to any item or group of items. Use assignment sets to associate specific items, categories, or organizations with the sourcing rules and bills of distribution.
You must use sourcing to describe the supply chain to the planning process. Use the following three structures to do so:
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Sourcing rules
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Bills of distribution
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Assignment sets
Sourcing Rules
Sourcing rules and bills of distribution determine the movement of material between organizations. These organizations include supplier, manufacturing, and distribution facilities.
You can navigate to a Supply Chain Planning work area and click Manage Sourcing Rules from the Tasks drawer to create or search for an existing sourcing rule. For more information, see Create a Sourcing Rule.
The three types of sources are:
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Transfer From: Interorganization shipping functionality accomplishes the transfer between internal organizations. Enter the source organization in the Organization column.
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Make At: The item is manufactured at this internal organization. Enter the manufacturing organization in the Organization column.
Oracle Fusion Replenishment Planning doesn't support make at sourcing rules.
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Buy From: Purchase the item from an external enterprise. Data entry in the Supplier and Supplier Site columns is enabled, and the Organization column is disabled.
Allocation Percent and Rank: The total allocation percentage for all sources within a rank must add up to 100 percent. The sources with the highest rank (lowest numeric value) get the highest priority in allocations. Unconstrained supply planning and Replenishment Planning only consider sources of rank one. Replenishment Planning also doesn't support sourcing splits.
Bills of Distribution
When material flows through three or more organizations, bills of distribution describe supply chain links more efficiently than sourcing rules. However, any relationship that can be described by bills of distribution can also be described by a set of sourcing rules. Typically, most users use sourcing rules rather than bills of distribution. You can navigate to a Supply Chain Planning work area and click Manage Bills of Distribution from the Tasks drawer to create or search for existing bills of distribution.
Replenishment Planning supports bills of distribution of only rank one and doesn't support split bills of distribution.
Sales and Operations Planning doesn't support bills of distribution.
Assignment Sets
You use assignment sets to link sourcing rules and bills of distribution to items. In other words, you use assignment sets to link sourcing rules, items and supply nodes. The assignment set creates the sourcing and transfer links between organizations for each item involved in a supply chain plan. Alternative supply chains can be modeled by creating alternative assignment sets. You can navigate to a Supply Chain Planning work area and click Manage Assignment Sets from the Tasks drawer to create or search for existing assignment sets.
For more information, see Create an Assignment Set.
Sourcing Assignment Hierarchy
The planning process uses a sourcing assignment hierarchy to determine the actual source of a specific item. You can assign replenishment sources at the following levels. Specific sourcing assignments override general assignment levels. If the planning process doesn't find any sourcing assignment, then the make or buy item attribute is used to determine sourcing.
The following table lists the supply sourcing hierarchy.
|
Rank |
Item or Category |
Applies to |
|---|---|---|
|
1 |
Item - Organization |
|
|
2 |
Category - Organization |
|
|
3 |
Item |
|
|
4 |
Category |
|
|
5 |
Organization |
|
|
6 |
Global |
|
When entering sourcing assignments at the category level, the catalog associated with the assignment set is used to determine the list of available categories.
When you source supplies for sales orders and forecasts (independent demands), then order promising and planning use a more detailed hierarchy. This hierarchy includes the demand class, customer, and customer site which are dimensions of independent demand.
The following table lists the demand sourcing hierarchy.
|
Rank |
Item or Category |
|---|---|
|
1 |
Item - Customer / customer site |
|
2 |
Item - Customer |
|
3 |
Item - Demand Class |
|
4 |
Item - Region |
|
5 |
Category - Customer / customer site |
|
6 |
Category - Customer |
|
7 |
Category - Demand Class |
|
8 |
Item |
|
9 |
Category - Region |
|
10 |
Category |
|
11 |
Customer / customer site |
|
12 |
Customer |
|
13 |
Demand Class |
|
14 |
Region |
|
15 |
Global |
Using the demand sourcing hierarchy, if a demand line includes a value for demand class, then if no sourcing rule exists for Item - Customer / customer site or Item - Customer, but a rule exists for Item-Demand Class, then that rule is used to determine supply sources for the demand line.
When using the sourcing hierarchy, if two rules conflict, the more granular rule is used. To verify which source is used for an assignment set, from within the set, click the View Sourcing button after entering the following required parameters:
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Assignment set
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Organization
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Item
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Date
The dialog box displays which assignments apply to the item-organization-date that you selected. If multiple rules apply, then the Active Rule is marked in the form.