I need to create a complex duplicate check rule. I am familiar with the aggregation rule; however, in this case it won’t work for me. Here is the logic to determine duplicates: If the name, unit of measure, location, and type are all the SAME but the code (not a PK) is DIFFERENT then it is considered a duplicate. These would be considered duplicates: Code Name UOM Location Type 123 Trek LBS Houston Bike 234 Trek LBS Houston Bike This is not considered a duplicate because we can extend products to different locations instead of creating a new row: Code Name UOM Location Type 678 Razor LBS Houston Scooter 678 Razor LBS San Antonio Scooter When I write the rule, I use the aggregation rule to select name, uom, location type is not unique; however, that can give me false positives for the scenario above (Code = 678). I don’t see a way to say these fields are the same while this field is different. I am doing this in one web; however, I’m open to writing something in the desktop if there is