Why would the developer receive an error stating the application cannot insert a duplicate value for the primary key in the data extension?

NTO uses data extensions to manage the subscriber information used for their email sends, and those sends includes calls to update records with new or different subscriber information. The developer handling these records writes some AMPscript to check and see if the data extension containing those records updated using an InsertDE() call if the record doesn’t yet exist .

Why would the developer receive an error stating the application cannot insert a duplicate value for the primary key in the data extension?
A . The InsertDE function will always insert two rows into a data extension as part of the call
B. The InsertDE function cannot be used with name and value pairs
C. The InsertDE function comes after the system added the row as part of the email send
D. The InsertDE function cannot be used at send time

View Answer

Answer: C