I know this is a requirement, but it's so grateful if you could take this into consideration.
Normally, if we use "FEFO-Batch" costing method, it would be easier to enter manufacturing date on "stock-in" step, instead of expiry date. Because the validity period of one product is fixed, and manufacturing date is straightforward to acquire. Then system can automatically calculate expiry date.
However, currently, user needs to enter expiry date by MANUALLY adding manufacturing date and validity period. It's not so convenient for users to operate.
In summary, manufacturing date is much easier to get for users, and we hope there could be another way to maintain expiry date in system, rather than manually input.