I am reposting this to see if I can get another answer.

I need a formula that will allow me to search a column (B1:B19989) that
contains text with the data from a column (A1:A32417) that contains a list of
part numbers and display a result(True/False) into another column (C). Column
B's text has the part numbers mixed in with the text. I need to know which
numbers from column A are found within the text of column B.

This is what I have tried in C1: =VLOOKUP(A1,CATALOG,2)

All I get is #N/A - I know that the value in A1 exists in CATALOG

CATALOG=The name of array B1:B19989