- When registering the cooperative (in @BillSync_bot or on the web portal) you can set the official registration date.
- The year of this date becomes the year from which membership fees (cotizatie) are counted for every lot.
- A lot can have its own “start year” that overrides the cooperative year; if it is not set, the registration-date year is used.
- The date can be changed later: the superadmin opens the company → “📅 Registration date”.
- On CSV import, the “lastPaidCotizatieYear” column auto-closes every year from the registration year up to and including that year as “covered” (paid, amount 0). Example: registered 01.01.2001, last paid year 2018 → years 2001–2018 are covered.
- If the last paid year is empty, all years from the registration year are shown as debts at current prices.
đź“… Registration date and the membership-fee year
When registering the cooperative (in @BillSync_bot or on the web portal) you can set the official registration date.