How to link an existing customer and an existing supplier

Summary:

Hi,

I am looking to link an existing customer and an existing supplier. In other words, is there a way to merge these 2 parties and create a single party with relationship as both 'Customer' and 'Supplier'?

Actually, I am looking to use same Tax Registration Number on the supplier, however that same registration number already exists with a customer. Hence, system is not allowing to proceed.

Any insight on this is appreciated.

Thanks,

Abhishek

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