• First, tap on your username on the top right of your screen
• A dropdown will open up, and click on “Company Settings”
• Click on “Invoice” to open up the settings of invoice generation
• Click the “Invoice Generation by Field Staff” checkbox to grant permission to field staff to generate the invoices
  
  

Here are the steps for Web:

Step 1: First, tap on your username on the top right of your screen

Step 2: A dropdown will open up, and click on “Company Settings”

Step 3:   Click on “Invoice” to open up the settings of invoice generation

Step 4:   Click the “Invoice Generation by Field Staff” checkbox to grant permission to field staff to generate the invoices