
On the "Stages" tab, specify start date later than or equal to start date in the general area
From the SAP Business One Main Menu, you have chosen .
You have specified a business partner.
In the general area, you have specified a start date.
On the Stages tab, you have specified a start date prior to the start date in the header and a potential amount greater than zero.
On the Summary tab, you have chosen the Won or the Lost radio button.
Ensure that the start date in the header of the sales opportunity is earlier than the start date on the Stages tab.