Related Questions:
Can I add more lost reasons?
Can I change the lost reasons on my Bookings?
Answer:
How to add Lost Reasons:
Select Settings
Select Fields
Click on Lost Reason
Select Add Lost Reason
Input Value
Select Save
How to edit Lost Reasons:
Select Settings
Select Fields
Click on Lost Reason
Select the field you would like to edit and click the edit pencil icon
Edit the field and click Save