Yes, however editing your listing will decline all current active quotes, this is because your quotes may not be accurate according to the new details.

To make these major changes click 'EDIT LISTING'

If you already have active quotes on your listing, but wish to clarify small changes (such as dimensions, weight, dates) with a specific provider, simply click on their username to expand their quote and see the "QUOTE MESSAGES" box (seen below). Here you can communicate with the provider without declining any quotes, remember, you can't share any personal or business contact details in this section.