Question :
Want to see Customer Agent in Purchase Invoice Module
Answer :
1. Go to Tools --> Customization centre
2. Double click QNE Optimum
3. go to BOModel --> QnRBS.BO.Purchase --> PurchaseInvoices
4. Right Click Own Member --> click Add --> Persistent
5. Set Properties as below picture
Name : Agent
Type : QnEBS.BO.AR.SalesPersons
6. Click SAVE and re-open qne optimum
7. go to Purchase invoice --> right click and drag Agent Field
8. Finish