Vital CRM
How do I set up auto-numbering of order?

Go to [Settings > System Settings > Numbering > Order], and tick [Activate OrderNo.], then tick [Order Auto-Numbering] so that you could start setting up numbering format.

*While adding or importing single data, the system will generate Order No. based on rules, moreover, Order No. cannot be edited by manual in order to assure consistency.

[Settings > System Settings > Numbering > Order], and tick[Activate Order No.], then tick [Order Auto-Numbering]
https://faq.vitalyun.com/EN/CRM#3958