drowning in expiration dates & lot numbers!!

just wondering if anyone has found an easy/quick and reliable way of checking product expiration dates (stuff with spf, salicylic acid, vitamins, etc) when they don’t actually list an expiration date on them, just a lot number/batch code.

i’ve been having to use my personal phone to pull up websites like checkfresh or something like it to search each individual lot number, see when it was produced, and calculate the expiration date myself.

We got a new DM last year and they made a HUGE fuss over finding one singular expired tester and now every time they come in, they try to casually go on a manhunt for something that could be expired.

idk man i’m tired lol does anyone know of a better way to look this stuff up??

Product examples: tarte bb blur, dr jart bb cream, dr gross peel pads (genuinely haven’t sold a singular full sized box since i got to this store a year ago and who knows how long before that).

*Not just for testers, the product as well*