Can I use multiple reps on one invoice?

No, however, you can create a custom ITEM field called whatever you want, like, "ItemRep". Then you can assign a single QB invoice to multiple ItemReps--that is, each line item on the invoice can have a different ItemRep assigned to it. In this way you will be assigning multiple reps for a specific client/job in a single QB invoice.

Then you can print individual sales reports for each ItemRep by using the "Sales by Item Summary" and "Sales by Item Detail" reports and Filtering on ItemRep.

Steps:

1) Create a “Custom Field” with the “Define Fields” button in the “New Item” Dialog under Menu “Lists | Items List”. Call the field whatever you wish, such as “ItemRep”

2) Customize your invoice by adding a new column to it (visible on screen only if you wish.) The new column will be the Custom Item Field you just created, ItemRep.

3) Add data by creating new invoices.

4) Report by using the “Sales By Item Detail Report” (Add display column for you new Item custom field, ItemRep. And filter on the new custom field, ItemRep, as well.)

5) Report by using the “Sales by Item Summary Report as well. (Filter on the new field, ItemRep. When you double click on an item in this report and a detail report pops up, add a display field, ItemRep to the detail report so you can see what is entered there.)

Note: Careful in data entry because ItemRep is a free form field and the data in the field, that is, the Rep name, must be consistently entered so that the report filter will work correctly.

Good Luck!