If you have a vendor that is checked as1099 eligible, however their bills use different account numbers, the 1099 should not pull all that has been paid.  Case in point, a vendor is being reimbursed for supplies, however, on a different invoice they provided consulting services.

On the QuickBooks accounting software, not only is the vendor tagged as 1099, but in the 1099 system, the account numbers are mapped whether they should be pulled or not into the 1099 distribution alleviating the data entry person having to remember to 1099 distribute at the invoice level every time.