The error Module/Unit of Competency identifier: Duplicate records exist within this file, or Only one record is permitted for Subject Identifier otherwise known as Duplicate Units occurs when you have more than one instance of a unit in your Tuple database if you deliver the same unit for multiple courses (for example, you deliver the same unit in both a Cert III and Cert IV qualification); however, only one instance of the unit should be reported in the NAT 60. Duplicate units occur in the NAT 60 if there is more than one instance of the unit and at least one of the following unit AVETMISS fields are not identical in each instance of the unit:
Unit Description
Supervised (Nominal) Hours
Unit Field of Education
Unit of Competency
Vet Flag
Examples of Duplicate Unit Error Causes
The following are common Unit Description variations that would result in a duplicate unit error:
How To Fix
Navigate to Tuple > Units
Type in the Unit Code
Click on code for the relevant instance of the Unit
Click Edit
Update the relevant field/s
Click Save
Repeat the above steps for any additional instances of the unit that need to be updated