There are two methods to edit a quote:
First way to edit a quote
- Click on Quotes submenu from CRM module.
- Click on quote's then click on Edit.
- Change the informations that you need to edit then click on Save.
Second way to edit a quote
- After step 1 from above select a quote.
- Click on Edit button and after you changed the informations click on Save like you saw above at Step 3.