I can’t use the Memoji on my iPhone 11 I click on it but it won’t work

Hello Jasmine_angel.

Thank you for using Apple Support Communities. It sounds like you're experiencing issues attempting to use the Memoji feature with your iPhone. Specifically, nothing happens when you tap on the button to use it. We can understand how this would be an issue. Allow us to investigate this issue and assist in any way we can. We also notice that you're coming from a helpful resource below:

Use Memoji on your iPhone or iPad Pro - Apple Support

If nothing is occurring while attempting to use this feature, we can recommend some troubleshooting steps. First, let's force close the Messages app, then restart your iPhone:

Close an app on your iPhone or iPod touch - Apple Support

Restart your iPhone - Apple Support

Also, if you do have any pending updates available, it would be best to install them. Keeping your device fully updated can help resolve various issues and also help with overall performance. Just in case, the resources below can guide you through the update process:

How to back up your iPhone, iPad, and iPod touch - Apple Support

Update your iPhone, iPad, or iPod touch - Apple Support

We hope this information is useful. Best of luck.