Share customers/ vendors

HI all,

I would like to use same vendor or same customer

- Same customers/same vendors accounts 

- Same number sequence sued for vendors and customers

The goal at the end is to have the same vendor account number  that I  can share in selected companies.

I used  Configure cross-company data sharing but I received this error message " A party id is used by vendors with different account numbers in the companies being shared. The policy cannot be enabled unless the vendor account numbers are the same."

It's strange as the number sequence used for customers  is shared between companies

Any help is appreciated