There is a pre-built duplicate detection rule called Exact Match. When this is enabled, you will be able to save a record if there is at least one unique field. It will ignore the other duplicate fields..
Right next to the field, you will be able to see a dialog box containing records with the same values.
While you enter the value in the fields, the plugin will instantly tell you if there are other records with the same fields.
You can create multiple duplicate detection rules for different modules in the SuiteCRM. Also, you can select fields for which you would like to avoid duplication.
There is an option called “Save Anyway” that will override the duplicate rules you must have created
See how SuiteCRM Smart Duplicate Detector proactively detects duplicate data and prevent you from creating duplicate entries in SuiteCRM.