I have uploaded a list of UNSPC codes with the parent id field properly maintained.
When I try to select the Product Category from value help - a popup windows opens up. The root nodes (for which a child exists) of the tree hierarchy have a [+] sign before them.
However, when I try to click on the [+] sign the page blanks out.
Any suggestions as to what the issue may be.
Regards,
Raghav