Error Message: The bill vendor does not match the payment vendor
Why the error occurs
This error can occur when you're processing an eBill from the inbox from a Network connected vendor but you're trying to assign the bill to a vendor that doesn't hold the Network connection the eBill is coming from.
Typically, this is due to having duplicate vendors in your Bill.com account.
How to fix the error
Confirm the Payment network ID listed in the vendor profile is the same Payment Network ID that the vendor sees in their Network Profile. If not, check for a duplicate vendor in your vendor list, both active and archived.
If you find a duplicate vendor, you can assign the bill to that vendor and archive the incorrect vendor or contact Customer Support for assistance with merging the duplicate vendors.