AdvancedData Cleaning
Find which customers are missing from a list
Use COUNTIF to reconcile two lists and spot what is absent.
COUNTIF · IF
14 min40 points
An order number in your sheet reads 100234. The same order number in the export reads 100234. They look identical, they are the same length, and XLOOKUP still returns #N/A on every row.
Match two lists where one side has trailing spaces you cannot see.
COUNTIF · IF
Read an error code as a diagnosis rather than a failure.
Match a customer ID against a reference table to return their region.
XLOOKUP