How to Display warning message in transaction window.
Hi Bharat & Team,
I want to display warning message, for duplicate invoices (same transaction number , same customer & same amount)
we have reminder in receipts. same like I want for transactions.
Note: -we have enabled the Allow Duplicate Transaction numbers.
I have tried like below.
Could you please provide the code for this.
Thanks in Advance,
Regards,
Ramesh