I’m trying to create a sign in / up screen by following this video: https://youtu.be/aFL8iQCmPkM, but it doesn’t seem to be working. This is the project it’s for. I’m trying to figure out to add Firebase sign in/up, Google, and Apple sign in/up, but it’s not working. I also want to store the user’s information in a Google Sheets table so they can create a profile. I’m wondering if I have to add an API Key to the project?
Hi @rubythedog689dng0, welcome to Thunkable! 
Be sure to check out our posts about How to ask Great Questions v2.0 and our Community Guidelines as you get started.
We would need a bit more information here to help you. Are you receiving an error when trying to use these sign in blocks? Is there an issue with the connection to Firebase? If you can offer a bit more information, we should be able to help you get this working!
Thank you!