By default Link My Books send settlements to Xero with the status Approved and with the due date set to the end date of the settlements payout period.
If you want to adjust these settings then you can do so via the Xero Settings section on the Settlement Settings page.
Change the status Link My Books sends settlements to Xero in
Navigate to the Xero Settings tab on the Settings > Settlement Settings page
Select your chosen status in the Invoice/Bill Status section
Click Save
Change the due date for entries sent to Xero
Navigate to the Xero Settings tab on the Settings > Settlement Settings page
Select your chosen due date using the dropdown in the Invoice/Bill Due Date section
Click Save