Adding customer contact on sales order

[NCP]

Hi @Akshay_Chordia,

That for, Please apply the client script.

frappe.ui.form.on("Sales Order", {
    refresh: function(frm) {
        frm.set_query("customer_contact", function() {
            return {
                filters: [
                    ["Dynamic Link","link_doctype", "=", "Customer"],
                    ["Dynamic Link","link_name", "=", frm.doc.customer]
                ]
            };
        });
    }
});

Then reload and check it.

Thank You!