Hello,
I am not understanding this here:
The products and values will be common to all and how can I firm this in the system?
A product can only be assigned to one vendor.
I am not sure I understand what you are trying to do, or what the issue is- but I would like to help.
Each vendor (dental office) will need to list products.. or you, the admin, will need to assign products to that vendor (dental office). Than that vendor will receive the commission form the purchase of their product.
Is this not what is occurring on your site?
Please explain further the issue you are experiencing…
Se é melhor para você escrevê-lo em português, posso traduzir o que você escreve, e isso pode nos ajudar a entender melhor uns aos outros.