Awareness when Two Companies both buys and sell to each other.

When have two companies that are both sales and supply respectively, there is a possible deadlock if you are running with default Buy-from number. 

In the Intercompany App Setup in both companies, the vendor from the IC partner card is added as Default Buy-From Vendor No.:

On the IC partner cads in both companies are added an IC customer and an IC vendor:

 

This causes the intended supply company in a specific flow to treat all sales orders (even IC sales orders) as orders that need to be bought from the other company, and hence creates a drop ship purchase order in the “supply company” (when the order is reopened and released again, and we end in a loop):

Sales order in intended “sales company”:

 

Sales order in intended “supply company”:

 

Furthermore, it will not be possible to add item tracking in either of the companies with this setup, as it will always point to the other partner to control item tracking.

 

If the Default Buy-From Vendor No. is blanked in the “supply company” the flow works.