@esm@wetdry.world they just follow best practices.
1. certificates should be renewed manually
2. there should be only one person responsible for it
3. there should not be anyone else who does it
4. the person who renewes the certificates should have enough holiday days for this demanding work
5. the holydays should be arranged that that person work for two and a half months and then get half a month off. as the person did a lot of work today their next holiday period should start in the middle of november and end on the end of november.