@Edwinr407 How old were you at the end of 2023? Were you claimed as a dependent by someone--like a parent? If someone else could claim you as a dependent then your own return should have been marked that you could be claimed as a dependent on another tax return. If someone else could claim you and you did not answer correctly in MY INFO when it asked you about that, that is why you had a rejection for duplicate use of your SSN.
Are you-- or were you--- a student under the age of 24? Did a parent claim you as a dependent for 2023?
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
