Vital GL
How long have I done the closing?

If the month has been closed, you are not able to select previous date. Therefore, if you would like to make up previous voucher, please cancel the closing of that month.

Closing cancellation: 
Please click [Daily work> Monthly closing] to select the date and check [Cancel], and click [Confirm].

*I would like to make up previous voucher, why shouldn't I choose previous date?
 

https://faq.vitalyun.com/EN/Finance#1268