One of the new tools in Verity under ColdFusion MX is the status attribute. When searching, it gives you a wealth of information about your search (how many documents were searched, suggestions, etc.). What I didn't know is that CFINDEX also has a status attribute. This lets you know how many items were added, updated, or deleted. It also lets you know if an error occured.

I was trying to use CFINDEX to update my collection data for one record, but it wasn't working. When I looked at the status message, I saw an error saying my key wasn't valid. Turns out - I had forgot to specify type="custom", which meant CFINDEX thought my key was a file.