Hi,

My customer have several of companies and each of them with some financial sites.

Between the companies and sites have sales and purchases, therefore we want to set up the intercompany flow

For each site we create one BP as Customer and Supplier but we want that the invoice BP and payment BP to be the same in all the sites by company, in order to manage just one BP in accounting

In customers, that it is allowed but not in suppliers, by showing this message:

Inter-site Supplier
These BPs should be BPs linked to the financial site of a supplier

Why not allowed??