If you have a client or project retainer that you want to apply to the invoice while creating it, here is how you can do that in the batch invoice mode:
- Open the Billings > Invoices screen.
- Click Create New > Invoice Batch.
- Enter the necessary filters on the Create Invoice dialog before continuing.
- Click More > Show/Hide Columns and select Retainer.
- Enter the retainer amount to be applied to the invoice and process the invoice as final when done. Check CORE Help Center for details.
Note: If you did not apply a retainer or applied the wrong amount when creating the invoice, you do not need to delete and recreate the invoice. You can edit the invoice while it is still a draft, open the Time & Expenses tab, click Subtotals, and update the Retainer field there.