Hi Team,
I have a requirement, wherein when user is creating a sales order, after selecting the customer account on SalesCreateOrder form. When user enters the Customer requisition as soon as he enters the value in Customer requisition, he should receive a warning message stating ' Customer requisition already exists' (if in case its already exists with any other SO), then its up to user if he still wants to create SO or not.
Where should I write the code for this scenario wherein before saving or pressing any button itself warning should be thrown.
Please help.