Warehouse supply structures

Before you can start to use direct material supply (DMS), you must define at least one warehouse supply structure.

Defining warehouse supply structures

To set up a warehouse supply structure, take the following steps:

  1. In the Warehouse Supply Structures (whinh6140m000) session, enter a new code and an appropriate description.
  2. On the appropriate menu, click Supply Relationships.
  3. In the Warehouse Supply Structure Relationships (whinh6141m000) session, add relationships, as required.
Example

To create the following supply structure...

Warehouse Supply Structure STRUCT1
Supply Warehouse Destination Warehouse Allow Supply from Receipt Allow Supply from SFC Receipt Allow Supply from Inventory
AB, B1, B2, E Yes Yes Yes
AC, C1, C2 Yes No Yes
BB1, B2 Yes Yes No
CC1, C2 No No Yes
EE1, E2 Yes Yes No

 

...you must define the following one-to-one relationships:

Warehouse Supply Structure STRUCT1
Supply Warehouse Destination Warehouse Allow Supply from Receipt Allow Supply from SFC Receipt Allow Supply from Inventory
AB Yes Yes Yes
AB1 Yes Yes Yes
AB2 Yes Yes Yes
AE Yes Yes Yes
AC Yes No Yes
AC1 Yes No Yes
AC2 Yes No Yes
BB1 Yes Yes No
BB2 Yes Yes No
CC1 No No Yes
CC2 No No Yes
EE1 Yes Yes No
EE2 Yes Yes No

 

To define a relationship between a single warehouse and all other warehouses, leave the opposite warehouse type field empty. In the following example, supply from inventory is permitted for supply warehouse A to all other destination warehouses:

Warehouse Supply Structure STRUCT1
Supply Warehouse Destination Warehouse Allow Supply from Receipt Allow Supply from SFC Receipt Allow Supply from Inventory
A No No Yes

 

Important!

After you define a supply structure, you must specify the structure in the corresponding field on the Miscellaneous tab of the User Profiles (whwmd1540m000) session. Otherwise, you cannot use DMS.

Using warehouse supply structures

Warehouse supply structure relationships are taken into account when DMS planning is carried out.

If you start DMS planning for a specific warehouse-item combination, LN checks which supply relationships apply to the current process. For each applicable supply relationship, the warehouse supply structure is consulted to check for which destination warehouses demand should be considered.

For the previous example, this means that after a receipt confirmation of an SFC order in warehouse A, demand in warehouses B, B1, B2 and E is taken into account.

Note

Only demand from DMS-supplied warehouses in the same warehouse supply cluster is taken into account. This includes demand directly on the supply warehouse.

To determine whether a destination warehouse can be supplied, LN performs the following steps:

  1. If, in the Inventory Handling Parameters (whinh0100m000) session, the Use Warehouse Supply Structures check box is cleared, no restrictions on supply relationships exist and all supply relationships are permitted. LN performs no further checks.
  2. If the Use Warehouse Supply Structures check box is selected, the user profile for the current user is retrieved. If no user profile exists or if the supply structure is empty for the user, the user is not authorized to run DMS and, consequently, the destination warehouse cannot be supplied.
  3. If the user is authorized to run DMS for a supply structure, the relationship for the supply warehouse and the destination warehouses is searched in the warehouse supply structure relationships. If such a relationship applies (current date is between Effective Date and Expiry Date), this relationship is used to determine whether the destination warehouse can be supplied.
  4. If, in the supply structure, no relationship exists for the supply warehouse and the destination warehouse, or if that relationship no longer applies, a relationship for the supply warehouse and an empty destination warehouse is searched. If this type of relationship applies (current date is between Effective Date and Expiry Date), this relationship is used to determine whether the destination warehouse can be supplied.
  5. If, in the supply structure, no relationship exists for the supply warehouse and an empty destination warehouse, or if that relationship no longer applies, a relationship for an empty supply warehouse and an empty destination warehouse is searched. If this type of relationship appliies (current date is between Effective Date and Expiry Date), this relationship is used to determine whether the destination warehouse can be supplied.
  6. If no (effective) relationship is found, the destination warehouse cannot be supplied.

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