I want to delete record using process modeler how I can do delete operation?
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If your record is backed by a database table, you can use the smart service docs.appian.com/.../Delete_from_Data_Store_Entities_Smart_Service.html
If you're going to delete from the record itself (i.e., by means of a related action), make sure you have some sort of landing page so that the user can navigate away from the (now deleted) record in order to avoid showing an error.
can you just elaborate it because I am new in appian