Hi again, Richard. I went to add additional IF's to that original
expression, but I'm getting that "Custom Expression is Invalid" error
again. Here's my original, singular IF that works:IF(INV Item
Number="I-132 Retainer","400001 Retainer","") Here's my new, multiple IF
that isn't working:IF(INV Item Number="I-132 Retainer","400001
Retainer",IF(INV Item Number="I-133 Project - Fixed Cost","400002
Project - Fixed Cost”,"")) Any idea why the multiple IF isn't working?
Followed this to a tee