Duplicate Detection Error Message: You can include only 450 characters in the matchcode. Either change or delete rule conditions to reduce the number of characters included, and then try again.

---------------------------
Message from webpage
---------------------------
You can include only 450 characters in the matchcode. Either change or delete rule conditions to reduce the number of characters included, and then try again.
---------------------------
OK  
---------------------------

So, the solution is to check the field length:


After reduce it to 450, then you can only publish the duplicate detection rule