Just a couple of things I though I’d cover while they were in the front of my mind.  Like most things in Eve, it is perfectly possible to make mistakes doing PI and for the UI to fail to point them out to you.  In fairness, if you make changes and try and exit without submitting them, it will flag that.  However, there is one thing it won’t, and I suppose can’t, do or warn you about.

Failure to route.

I have made this mistake myself.  For some reason I change the resource I’m harvesting, or the blueprint a manufacturing facility is using.  Where once there was a route for the resulting product, there may now be none.  So all that product will go into a deep dark hole, never to be seen again.  Irritating?  Yes.  Expensive?  Possibly.  Avoidable?  Absolutely.  Every time you make a change, think about routing, where things need to come from, where things need to go.  The game will not do it for you – it can’t know if you want to just store output, or pass it to another processor.

A short post, I know, but perhaps a useful reminder if you can’t figure out why your end product has disappeared…