Expiry date for Printed & Non Printed Shippers

[OSS]

We are supplying printed and non-printed shippers to customers. One of our customers asked us to submit the expiry date for Printed & Non-Printed Shippers. Sofar we haven't done this to any of our customers. Kindly advise how to handle this. if anyone have the experience on this subject kindly share the experience or format.

 

[PricelineNegotiator]

What exactly is a shipper?

 

[OSS]

Corrugated box