I am not sure whether your QBO region supports it or not.
You can utilize the "other number" or "resale number" field for customer and the "account number" or "other number" field for vendor/supplier.
| Title | Company | FirstName | MiddleName | LastName | Suffix | DisplayName | PrintOnCheckName | BillingAddressLine1 | BillingAddressLine2 | BillingAddressLine3 | BillingAddressLine4 | BillingAddressCity | BillingAddressState | BillingAddressPostalCode | BillingAddressCountry | ShippingAddressLine1 | ShippingAddressLine2 | ShippingAddressLine3 | ShippingAddressLine4 | ShippingAddressCity | ShippingAddressState | ShippingAddressPostalCode | ShippingAddressCountry | PhoneNumber | MobileNumber | FaxNumber | OtherNumber | WebSite | Email | CustomerType | SalesTerm | DefaultTaxCode | TaxExemptionReason | ResaleNumber | PaymentMethod | PreferredDeliveryMethod | BillWithParent | Currency | Notes |
| Mr. | Abacus Industries | Janice | | Johnson | | Janice Johnson | | 110 Main Street | Suite 2000 | | | Dallas | TX | 99875 | | 400 East Street | | | | Dallas | TX | 99875 | | (603) 555-2000 | (603) 555-2001 | (603) 555-2002 | (603) 555-2003 | | [email address removed] | Residential | Net 30 | | | 12345678 | Check | Print | Y | | |
| Mr. | Walker Associates | Leonard | | Walker | | Leonard Walker | | 9 Winding Road | | | | Winchester | NY | 12345 | | 9 Winding Road | | | | Winchester | NY | 12345 | | (603) 555-3000 | (603) 555-3001 | (603) 555-3002 | (603) 555-3003 | | [email address removed] | Commercial | Net 30 | | | | Check | Email | | | |
| Mr. | Pinnacle Partners | Lisa | | Smith | | Lisa Smith | | 19 Jerico Drive | | | | Bensalem | PA | 84256 | | 19 Jerico Drive | | | | Bensalem | PA | 84256 | | (603) 555-4000 | (603) 555-4001 | (603) 555-4002 | (603) 555-4003 | | [email address removed] | | Net 30 | | | | Check | None | | | |
| Title | CompanyName | FirstName | MiddleName | LastName | Suffix | DisplayName | PrintOnCheckName | AddressLine1 | AddressLine2 | AddressLine3 | AddressLine4 | AddressCity | AddressState | AddressPostalCode | AddressCountry | WebSite | TaxIdentifier | AcctNum | Vendor1099 | Email | PhoneNumber | MobileNumber | FaxNumber | OtherNumber | SalesTerm | Currency |
| | Comcast | | | | | Comcast | | PO Box 1190 | | | | Boston | MA | 02109 | | http://www.comcast.net | | 11335435 | FALSE | [email address removed] | (603) 555-2000 | (603) 555-2001 | (603) 555-2002 | (603) 555-2003 | | |
| | Verizon | | | | | Verizon | | PO Box 5180 | | | | Nashua | NH | 03060 | | http://www.verizon.com | | 43220909 | FALSE | [email address removed] | (603) 555-3000 | (603) 555-3001 | (603) 555-3002 | (603) 555-3003 | | |
| | Mary Smith | Mary | L. | Smith | | Mary Smith | | 1313 Mockingbird Lane | | | | Hollywood | CA | 90027 | | | | | FALSE | [email address removed] | (603) 555-4000 | (603) 555-4001 | (603) 555-4002 | (603) 555-4003 | | |
