We would vote for the ability to do exports/imports in the background thread too. Fetching data via Rest API does not seem to disconnect logged users, so it may be could be possible to do the same with exports/imports.
same v. 2025-02-24. New DB. Just forward balances (purchase, sales invoices) from 2024 and later. In your case does turnover per period differs or just fwd. balance differs and turnover is identical i...