Suppose a customer order 3 products. In our case there is a gap between sending the products. We enter tracking id for 1st product at that time mail is going to the customer mail id. After a 2 or 3 month we enter the tracking id of the second product, at that time also mail is going in this mail tracking details of previously send product details is coming like Shipment 1 (out of 2) & Shipment 2 (out of 2)

Here the problem is that this is making confusion for the customer since they have ordered 3 products and it is showing (2 out of 2). Can you please hide the details of previously send product tracking details from the corresponding mail and send the mail as first one, or can you make it as shipment of (2 out of 3) 3 as product count