Consider this scenario, you manage more than 2 companies internally. You do transactions amongst internal companies like sales, purchase, receipt & payment. For Example Sales entry in one Company is a Purchase entry in another Company, and payment in one Company is receipt in another Company.
With AccXchange sales entry in one Company will be automatically converted to Purchase entry in another Company. Likewise Payment entry in one Company will also be converted to Receipt entry in another Company.
If you manage multiple companies then you will have to buy multiple AccXchange IDs, one AccXchange ID for every company.
Yes it does support this type of situation, your customer and vendor can connect their ERP system to AccXchange to your Tally through ODBC connectivity and using Tally API for integration with AccXchange provided by us.