| # Example: source allocation in order planning In ERP LN, you must define a sourcing strategy if you want to use more than one source of supply. In a sourcing strategy, per supply source, you can define the minimum and a maximum volume that ERP LN can use to cover requirements. ERP LN then distributes the requirements over the specified supply sources. If you define a sourcing strategy in the Sourcing Strategy (cprpd7110m000) session, you must choose between two source allocation rules: Percentage Priority According to these rules, ERP LN distributes the required demand over the selected sources. Source allocation rule: Percentage Suppose you set the Source Allocation Rule field in the Sourcing Strategy (cprpd7110m000) session to Percentage, and specify the following source values: Production: 30%. Purchase: 20%. Distribution: 50%. You record an item's demand forecast in the item master plan and subsequently generate planned orders based on this forecast. The following table shows the demand forecast:
Plan period | 1 | 2 | 3 | 4 | 5 | 6
Forecast | 100 | 100 | 100 | 100 | 100 | 100
If you clear the Allow Multiple Sources per Requirement check box in the Generate Order Planning (cprrp1210m000) session or the Generate Order Planning (Item) (cprrp1220m000) session, ERP LN generates a single planned order for each requirement. In other words, ERP LN generates one planned order per plan period. The following table shows a possible distribution of the planned orders over the available types:
Plan period | 1 | 2 | 3 | 4 | 5 | 6
Planned production orders | - | 100 | - | - | 100 | -
Planned purchase orders | - | - | 100 | - | - | -
Planned distribution orders | 100 | - | - | 100 | - | 100
The resulting distribution is:
Order type | Target percentage | Total volume | Actual percentage
Production | 30% | 200 | 33%
Purchase | 20% | 100 | 17%
Distribution | 50% | 300 | 50%
Source allocation rule: Priority If you set the Source Allocation Rule field in the Sourcing Strategy (cprpd7110m000) session to Priority, you can define the priority for each source. The priority source-allocation rule only applies to order planning. In master planning, a priority source-allocation rule is interpreted as a Percentage source-allocation rule. Suppose you define the following priorities: Production: 0. Purchase: 30. Distribution: 70. First, ERP LN tries to cover the demand with planned distribution orders. If the quantity that internal suppliers can deliver is insufficient, ERP LN generates purchase orders to supply the remaining quantity. Related topics Sourcing strategies To search sourcing strategies To select external suppliers To select internal suppliers |