On this webpage you can check lot expiry date and download several types of certificate for this lot:

• Certificate of Analysis (CofA, COA)
• Certificate of Compliance (CofC, COC)
• Certificate of Conformance (CofC, COC)
• Certificate of Sterility (CofS, COS)

On product article you can can enter:

• Article number
• EAN13 barcode
• UDI part starting with 01.. (UDI-DI)
• Manufacturing part number (MPN)

Also you need to enter Lot number.

If you want to integrate this check to your system, you can use url:
https://schuelke.lv/check-lot/info
POST {"jsonrpc":"2.0","method":"call","params":{"prod_article":'PPP',"lot":'LLL'},"id":123456}
or
https://schuelke.lv/check-lot?prod_article=PPP&lot=LLL
Where PPP is for Article field, LLL is for lot and 123456 is for random integer.