Rather than sending separate invoices for each day of work on a project, you can combine them into one invoice and send it weekly, fortnightly, or monthly. Before merging, you need to convert your billable bookings into individual invoices using Bulk Invoicing or by invoicing each job separately.
How to Merge Invoices
Navigate to Billing on the sidebar
Select the Invoices tab
Select More drop-down
Select the desired Client
Press Filter
Click Merge Invoices button
Select the desired Invoices
Click Merge Selected
