Hi
in quote entry,
tasks tab
details tab
We have a default task (apparently in quotes, you have to have one task ticked as a ‘milestone’ as a minimum requirement) - ours is sequence number 10, default Task set - whereby the quote is ticked ‘won’ if it is converted to a sales order and ‘lost’ if it is not.
When I right clicked on our task, and opened with ‘Task Entry’, I opened it up and the 'inactive checkbox was ticked, which was causing our error message.
We can only assume this got clicked by mistake somewhere in our upgrade as nobody would have ticked the box intentionally!
Hope this helps.