The actual move should ideally happen at a natural break, such as the start of a new fiscal year or quarter.
Enter trial balances, outstanding invoices, and unpaid bills to ensure the new system starts with an accurate financial snapshot.
If possible, run both systems for one month to verify that the new software produces identical results to the old one.
Clean up your Chart of Accounts and archive inactive vendors or customers.
Provide structured training on financial workflow automation to help staff see immediate time-saving benefits.