Supplying plant per Site, not possible to add DC as supplying site to Store

Hi!

I need some basic Retail help. Classic setup, a DC should deliver to serveral Stores. The store should have the DC as a "Supplying plant", this is normally added on the Store master record using "Supplying Site" button. I have done this in training before and everything worked then. Now I have my own company code, sales organization, etc. and now I can't get this connection to work, something is missing.

Im getting the message: "Supplying site 7500 cannot deliver to any of the site distribution chains. Message no. WN055"

The error message is understandable, but I can't find out what Im missing in the IMG?. My DC is named 7500 and my stores 7501 and 7502.

In the IMG I have setup the following:

"Assign Distribution Channel to sales orgainzation": My SO is added and all possible Distribution Channels are there

"Assign Sales Organization - distribution channel - site": I have added my stores with the Distribution Channel for the stores. I have also added the Distribution Channel for the DC. I have tried to add all different combinations here but nothing seems to help.

"Distribution Chain control": My distribution channels are added and connected to the SO

Is there something im missing here, probably I do. Is there some more places in the IMG where I need to add some data?

Hint: If you google on: "SAP WN055", you will receive one hit, it seems like a Russian guy have had exactly this problem but when translating this case (rus -> eng) I can't not really understand the solution given 😔

Thanks in advance

Fredrik