If the Product Indicator field is empty, try this:
Open Security for Alternate windows, select all products and windows
Select Purchasing
Check each purchasing window and make sure that the WennSoft Products version is selected.
Apparently, the product indicator field will only be populated if ALL the purchasing alternates for WennSoft are enabled.
I ran into this issue after installing another 3rd party, which installed some of the same alternates as WennSoft and automatically set security to the 3rd party window.
Did this help you? If so, please leave a comment!