The default conversion window is customisable, but before you make changes, it's essential to understand that the abandoned cart life cycle is very short. By default, we set the conversion window as seven days.
Set the conversion window
The default conversion window is seven days. You know your own data best, and it's up to you how you set your conversion window.
Before changing the default window, read the article Understand how our abandoned cart model works carefully.
To manually set your conversion window:
Expand the User menu and go to Settings > Commerce > Commerce settings.
Under Abandoned carts conversion window, enter a number (of days) into the Conversion window field.