thank you for your reply. 

No, I need to create customer and supplier on the same file with the possibility of mentioning is a customer and is a supplier. in version 15 you have to create each one on its own module automatically the creation of partner it is duplicated, that's why I need a module that does that to keep the same logic of the old versions. a single record.

Hello Sbabou,

Yes, it's possible to separate customers and suppliers on the Contacts module in Odoo 15. 

You can either create a single file and differentiate between customers and suppliers using tags or custom fields, or use a third-party module such as "Partner Multi-Type" to separate them.

Regards,

Team Ksolves!