Find duplicate in two different sheet

Hello

Thank you in advance for any help. I want to compare column A in sheet one to column b in sheet two (values are alphanumeric ) and highlight the duplicates found in sheet 2. To be more precise I would like to take column A in sheet one and scan all of column b in sheet 2 but this value could also be found in a sentence in column b of sheet 2. My end goal is to highlight any values from column a in sheet one found in column b of sheet 2.


Cheers