Display validation message before submitting sales order?

ERPNext
1
  1. I have added new checkbox button(is_production_generate) on sales order page and we need to display validation message(No Items with Bill of Materials to Manufacture).
    We will generate auto production order on sales order submit.
2

@vaibhavk,

you can add the validate or before_submit hook to add the validation message

3

Both are working but after submit sales order. We need before submitting sales order.

4

We do not need to submit sales order if validation is failed. Currently now it is submitting

5

ok…