Bigcapital is accounting software, so the trial must be about financial correctness rather than a pleasant dashboard. In a separate test company, enter representative invoices, expenses, taxes, and opening balances. Compare the trial balance, receivables, payables, and cash reports with figures approved by the person who owns your books.
Check how exports preserve transaction dates, account mappings, customer references, and attachments. Test a correction or reversal rather than only the happy path, and ask whether the deployment and backup model fits your obligations. A migration plan should include a cutover date, reconciliation sign-off, and access to the old records. Do not use a demo with invented totals as proof that historical books migrated correctly.