Error while updating supplier address

Summary

Error while updating supplier address

Content

Hello Friends.

I am trying to update address for a supplier. This supplier has Income Tax defined at the Profile level. When I change the address and try to save I get error "A record with the value 04XXXXXXX already exists. Enter a unique value." This is the taxpayer ID we have for the supplier. So I deleted the tax payer ID and I was able to update the address. Now I am not able to update the tax payer ID and get same error.

Please let me know how do I update the tax payer ID now or keep the taxpayer ID and update the address