How To Combine Invoices on Clientarea:
- Login to the clientarea
- Go to Billing >> Combine/Merge Invoices
- Select the invoices that you want to combine by ticking on the left checkbox
- Click on "Combine Invoices" button on the bottom
How To Split Invoices on Clientarea:
- Login to the clientarea
- Go to the Billing >> Combine/Merge Invoices
- Select the invoices that you want to split, then click on "Split Invoice" button
- Choose items that you want to split, then click "Split Invoice" button
Additional Information:
- You cannot split invoices that has already overdue.