The 2021 tax file is what you need to file your tax return in 2022, i.e. for your income and expenditures from 2021.
As such, you will find the transactions along with any corresponding debit/credit advices booked in 2021.
Certificates issued by Spuerkeess in early 2022 can therefore be found in the file for the 2021 fiscal year.
When uploading a document, it is advisable to access the fiscal folder of the year linked to the document/certificate. Please note that the year may be modified directly within the upload form.