Using conditional formatting to find duplicate values in two tables.

jbake248

New Member
Joined
Feb 23, 2022
Messages
6
Office Version
  1. 365
Platform
  1. Windows
Hello, I search the site and could not find this answer. I'm working with Access and I have two tables each having a column with the same information, I want to use conditional formatting to find the duplicates.
This is what I'm using in the expression part of a new rule. =countif( [Review]![Table1]= [Table2]![Case Number],0).

What I get is you may have entered a comma without a preceding value or identifier. I have no commas in the expression.
Any help would surely be appreciated.
 
Perfect thanks for all your help. I cannot get the formatting to work but with the query, I'm not sure I need it.
 
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Perfect thanks for all your help. I cannot get the formatting to work but with the query, I'm not sure I need it.
Yes, since you can limit your query to only those records you are interested in, I thought that might not be necessary.
 
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