When creating internal suppliers, define 'Internal sales facility' and 'Supplying warehouse' on 'Supplier. Define Purchase Financial' (CRS624/G) if the supplier should represent a selling facility and warehouse the supplier represents. These fields are only visible for suppliers of supplier type 7-'Internal'.
If an internal supplier is associated with a supplying warehouse, it will automatically be proposed as supplying warehouse when selecting the supplier in 'Item. Connect Warehouse' (MMS002).
An internal planned purchase order will automatically create a material reservation with order category 310 (planned customer order issue) at the supplying warehouse.
The supplying warehouse for the planned customer order issue is retrieved from:
If no supplying warehouse is found, no planned customer order issue is created, since it is not known at the planning stage which warehouse will be used. The customer order warehouse will then be assigned when the customer order is created, according to standard customer order logic.
Having a planned customer order issue is important if planning method 1-'Reorder point' or 2-'MRP' is used for the item at the supplying warehouse. The planned CO issue will:
The planned CO issue will always reflect the current state of the planned purchase orders, with negative quantity. Its status will indicate the status of the planned PO. If a planned CO issue has been created, it will exist until the planned PO has been released and printed and it is replaced by the actual customer order.
Lead time for internal sales is handled similarly to for normal purchasing. The planning date of the planned CO issue will be the requested delivery date of the planned purchase order minus the supply lead time as specified in (MMS002).
Lead time for PO:
|Lead time component||Description|
|Postal lead time||If time for communication with selling facility and CO registration is needed|
|Supply lead time||Time between CO issue and delivery date. Should include all
transportation time for which the supplier is responsible.
|Transportation lead time 1||Only applicable if goods responsibility = 1|
|Transportation lead time 2||Only applicable if goods responsibility = 1 or 2|
Planning Time Fence Calculation
If a supplying warehouse is entered in (MMS002), 'Planning Time Fence Horizon. Calculate' (MMS355) can be used to calculate the planning time fence for internally purchased item, similar to as for distributed items, by accumulating the lead time and safety time of the supplying warehouses until a purchased, manufactured or master scheduled level is found.
If a supplying warehouse is entered in (MMS002), it will affect the low-level code calculation in the same way as if the item were distributed, increasing the distribution level. This will happen automatically when the supplying warehouse is changed.
The low-level codes are a prerequisite for the MRP calculation to be performed in the right order. This means that when MRP is calculated for an item, the warehouse that is supplied by internal purchase will be processed before the supplying warehouse. This is important since planned purchase orders created at the supplied warehouse affects the demand at the supplying warehouse.