I have missed my CSA exam,can i retake the exam for free again with the same voucher

[Julian Lemcke]

You need to contact ServiceNow here directly and ask if there is a possibility to exchange that. Typically you're vouchers are "used".

[Sagar Pagar]

Hi @Yamini Chintada,

Login with your credentials to https://www.webassessor.com/SERVICE_NOW.

and try to re-schedule it.

https://kryterion.force.com/support/s/article/How-to-reschedule-cancel-your-assessment?language=en_U... 

OR

Please contact ServiceNow Training Department at certification@servicenow.com and write down your queries.

Thanks,

Sagar Pagar