You can update multiple invoices or credit notes from Draft to Approved status by performing the following steps:
- Navigate to the Sales or Purchases tab
- Select the Draft tab
- If necessary, apply a filter to the view, or change the number of transactions displayed
- Select the transactions that you wish to update by ticking the check-boxes on the left hand side
- Scroll down to the bottom left of the page and click the Approve button (located after the last check-box).