Hello Organizers, I'm registered as a participant and want to submit Task 1. When I navigate to the submission page, I see an error: "Please join a Submission Team before continuing." Is team registration available now, or does it open together with the Validation Leaderboard on May 21st? If it's available now, could you point to instructions for creating/joining a team? Thanks!

Created by Andrés Felipe Romero Grajales afromerogr
Hi @afromerogr, That error usually means your registration is not quite finished yet, as joining a team is the final step! (Sorry if that wasn't made clear) When you're on the [challenge page](https://challenges.synapse.org/brats2026), does the button text still say "Register for this Challenge"? If it does, here is how to complete registration: 1. Click on the **Register for this Challenge** button again 2. A pop-up window will show with the Challenge Terms & Conditions. Since you have already agreed to the terms, go ahead and click **Continue** 3. On the next page is where you can create a new Submission team for the challenge or join an existing one You'll know you are good to go when the registration button is replaced with a **Leave Challenge** button. As a reminder, you can upload your files now, but the submission queues don't open until May 21st. Hope this helps!

Submission Team registration — available now or only at validation phase open? page is loading…