Converting estimates into invoices is actually done in one easy click. All you have to do is find the estimate you’d like to convert, and while viewing it you should see a big button that says “Convert to Invoice”.

When you convert an estimate into an invoice it represents that the estimate was approved by your customer/prospect.

Once the estimate is converted you’ll still have a copy of the original estimate as well as the newly created invoice. We lock the estimate from editing (so you can reference it later knowing that it hasn’t been changed for one reason or another), but you can still modify the invoice independently. Invoices become locked once a payment has been made towards it. We do this to prevent any possible issues between your business and your customer. If the invoice needs to be modified once a payment is made, you should issue a new invoice for the difference or return the initial payment and start over.