Yes! Just about all of the campaign content can be edited after your Thunderclap has been approved. You'll receive an approval confirmation email with details next steps, including instructions for editing your campaign.
Keep in mind:
1. Try to finalize your message before you start recruiting supporters. (This is the text that your supporters will share from their social media accounts when your Thunderclap tips.) Why? If you change your message after supporters have started to back your campaign, the edits won't be applied to existing supporters. When new supporters join, they can sign up to share the latest version of your message, but your previous supporters will still share the old version unless they opt out and re-support.
2. If you don't have a finalized message link yet, don't worry. (This is often the case with crowdfunding projects on Kickstarter and Indiegogo that are still in draft mode and the final project page won't be ready until you go live.) You can use a placeholder link in your Thunderclap's message link field for now, and then swap in your finalized URL when it's ready. This change will take effect for current and previous supporters. They'll all share the new link when the Thunderclap tips.
3. If you'd like to edit your campaign's end date later on, you'll need to upgrade to any paid plan to enable the Flexible End Date feature.
4. You can edit your supporter goal at any time, whether that means raising it or lowering it.