Adding a new plant to an existing live warehouse in EWM

[former_member549339]

If there is a warehouse that is live and has a plant assigned to it, and one has to add another plant to the warehouse, is this possible?
In SPRO, under Assign warehouse numbers configuration, default supply chain unit, custodian and party entitled to are assigned. The question here is, to add a 2nd plant to the warehouse, do the default values maintained under this setting need to be removed? If yes, how does it affect the already existing transactional data in the warehouse (since there would be inconsistencies)?
What is the correct procedure to add multiple ERP plants to an already live warehouse?

[shailesh_mishra5]

Hello Awantee,

As expert Juergen has guided you, it can be followed. However, I need to accentuate few things which must be taken into consideration.

1) Never change the settings of Assignment of SCU to warehouse SAP note 1253979. It will damage EWM site and would be impossible to retrieve the old datas.

Now, what ideally you need to conduct is below steps.

1) Create your ERP plant, assign it to your storage locations( 1 Or many), and assign it to your ERP 3 digit Warehouse.

2) Create your plant as vendor and customer and assign the plant in your vendor master. You can either assign Plant in vendor master or assign plant as sales area in your customer master. Generally we assign Plant in vendor master and SAP also says this.

3) CIF your plant, Vendor and customer having value equal to 2 ''Create Both BP and location''.(CFM1/CFM2). Upon successful CIFing, EWM will have Business partner having CRM011 as unique identification number in BP. Since warehouse is connected to 2 plants now, you need for each plant exactly one business partner with external identification CRM011 and the corresponding plant number. This business partner represents the plant in EWM and has the function of party entitled to dispose of the stock. Any stock in EWM must be assigned to a party entitled to dispose.

4) CIF your shipping points for newly created plant

5) Since storage locations from ERP cannot be CIFed to EWM SCM system, you need to map a virtual attributes of ERP storage location in EWM which is called as Availability group. Assign your ERP plant, Sloc to EWM Warehouse and Availability group. You can further expand your availability group assignment to Stock types.

6) As expert Juergen has mentioned that you can remove the'' Default Part Entitled to dispose'' assign warehouse configuration because here you are working with multiple plants, so just remove that field only.( Dont remove any other fields here, else whole EWM site would be jeopardized)

7) When we CIF plant to EWM, it creates Location(PL as prefix) and Supply chain Unit(PL), what SAP suggests in case of multiple plants assigned to 1 EWM warehouse is either of these 2.

A) Use the SCU of one of the plants as warehouse SCU (if the address of the plant is identical to the address of the warehouse) OR

B) If several plants are linked to your warehouse you can either insert the shipping offices SO and receiving offices RO in the SCU hierarchy /SCMB/SCUMAIN directly under the warehouse SCU or build a multilevel hierarchy including the plant SCUs.

Test all these in your test system before moving to Production.

Best regards

Shailesh Mishra

[former_member549339]

Thank you for such a detailed explanation, Juergen and Shailesh.
Just a quick question now. When clearing the Party Entitled to Dispose field in the Assign Warehouse Number configuration, a message pops up, saying, "Changing the warehouse assignment while transactional data exists (e.g. deliveries) could result in the fact that this data can no longer be selected or processed. This change can lead to subsequent errors. Proceed anyway?"
Is it safe to continue after this without affecting any existing data in the system?