Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets ...
How-To Geek on MSN
Stop fixing Excel formulas: 5 vital habits for data integrity
Prevent broken formulas using tables, validation rules, separate worksheets, named variables, and the power of LAMBDA.
Use dynamic arrays and tables for fast, scalable cascading drop-down lists in modern Excel.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results