Hi Ben

I think your #1 is linked to this known error. It happens on my Quebec PDI too. If this is happening on your corporate instance it's probably worth raising a support (Hi) ticket so that at least your case will be linked to the PRB record and you'll be notified when it's fixed!

Again, your #2 I think is that KE - if you pick reference first time round, it should work - does it? 

For #3 - what you're doing is looping around all the records individually and then just comparing the last one. You'll want to do something like this:

1. Look Up Verizon Import Set Table Records
2. For each item in 1: 
3. Look Up Hardware Records where device model = hardware model (Set a limit on here as 1 record to return for performance, the reason I use records rather then record is because you get a count integer at the other end you can do stuff with)
4. if count of 3 > 0 then
5. Do stuff here where the models are the same
6. else
7. Do stuff here where model wasn't found. 

Mike