Issue:

• Unable to add a dollar amount discount to completely discount some line items with specific Rate and Duration amounts

Environment:

• Clio Web App

Additional Information:

• Sometimes, an error will appear when discounting line items with a certain duration and rate for the full amount. The error message is "Error: A quantity, rate, or discount has been applied producing a negative row total." 
• If you try to save the invoice after the discount, an error "Error: Unable to save changes. A quantity, rate, or discount has been applied producing a negative row total." will appear 
• These line items will not be able to be discounted for their full amounts, and instead will need to have a 100% discount applied instead. 

Cause:

Some numbers cause rounding issues internally 

Workaround:

• Apply a 100% percentage discount