No—when to send an account to collections with CollBox is completely up to you.
Importing your data into CollBox, whether by connecting your accounting system or loading data from a spreadsheet, is only the first step. At this point you'll be able to view your past-due accounts and explore your options, but sending accounts to collections is always up to you—CollBox will never send an account to collections without your consent.
After your data is loaded you will see the total of the account balances you've uploaded in your Collectible bucket:
At this point you're ready to explore collection offers and submit your first account to collections.