Hi Nagarajan,
I am not really sure why customers are requesting for these, it could be their company difference in purchase management.
But anyhow, I got an alternative solution from SAP consultant which will touch on the SQL stored procedure. With this, it will check if there is any similar reference no. existed in other quotation before adding it. So, we are now using reference no. field as our quotation number.
Thanks & Regards,
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