I am new to ModelBuilder and I've been learning as I go. Almost have this model working but I've hit a snag. I have a simple Calculation that I iterate to spit out condition ratings of pipelines based on date and durability etc. This I have working fine. Problem is writing to the new field I created. I am trying to use Calculate Field inline with the iterated calculation so as it calculates it writes to my field. Problem is it updates the entire field every time it iterates over the calculation.
How can I make calculate field only write one value at a time and skip to the next cell to populate my field with satisfying pipeline condition ratings?