About MRP Area (Storage Location) and MRP Area (Plants)

[Hoppy]

Why is the S/4 HANA MRP Area customization as follows?

e.g.)
<Master Client (CL100)>
  Plant 1000 Storage location 1001,1002,1003
  Plant 2000 Storage location 2001,2002

MRP Area Customize (Set only the following storage locations)
  -MRP Area 'AAA' :Assign Storage location 1001

After making the above settings, when transferring to CL200,
<CL200>
MRP Area (The settings are as follows when viewed in SPRO)
  -MRP Area '1000' :Plant 1000
  -MRP Area '2000' :Plant 2000
  -MRP Area 'AAA' :Assign Storage location 1001

*Question
Why are MRPArea1000 and 2000 automatically registered at the transfer destination? Is this standard SAP behavior?

Please let me know. Thank you.

[Hoppy]

Dominik Tylczynski Thank you for the very useful information.

[DominikTylczyn · Accepted solution]

Hello @Hoppy 

When MRP areas are active, which they are in S/4HANA by default, there is always one plant level MRP area per plant. Its number is the same the corresponding plant number. The plant MRP area is comprised of all the plant's storage locations that are not assigned to store location MRP areas. Therefore in CL100 plant MRP area 1000 contains storage locations 1002,1003 as the storage location 1001 is assigned to the storage location MRP area AAA.

If there is a transfer posting between plants, without specifying any storage location, that will be a transfer between plant MRP areas. If you transfer from plant 1000, storage location 1001, that will be a transfer from MRP area AAA.

Thus the MRP areas that you see in your transfers really depend on storage locations determined in the transfers.

Best regards

Dominik Tylczynski

[Hoppy · Accepted solution]

Dominik Tylczynski

Thank you for the very useful information.

I have one additional question.

Where is the setting for activating/not activating the MRP area?

I would appreciate your advice.

Thank you in advance.

[DominikTylczyn · Accepted solution]

Hello @Hoppy 

The settings sits in SPRO path: Production -> Material Requirements Planning -> Master Data -> MRP Areas

However you won't find MRP activation option in S/4HANA as MRP areas are always on here. 

Best regards

Dominik Tylczynski

[Hoppy · Accepted solution]

Thank you for your prompt reply.
Also, thank you for the valuable information.

The customization section you mentioned does not have an active/inactive setting.

I understand now that in S/4HANA, the MRP area (plant level) is always set.

Thank you very much.

[Hoppy · Accepted solution]

Dominik Tylczynski

Thank you for your prompt reply.

Also, thank you for the valuable information.

The customization section you mentioned does not have an active/inactive setting.

I understand now that in S/4HANA, the MRP area (plant level) is always set.

Thank you very much.