When you launch a Creative Cloud or Document Cloud subscription app, you get an error stating that sign-in failed, limit was reached, or the maximum number of activations was exceeded.
Having a problem with Acrobat DC? If you have a subscription to Acrobat DC, follow the solutions here to sign out of other computers. If you purchased Acrobat DC as a standalone (non-subscription) application, follow the solutions in "Activation limit reached" or "Sign in failed" error.
Have a different issue? If you are having a different sign-in or activation problem, see Troubleshoot Creative Cloud activation errors.
These errors occur if you try to use the app on more than two computers. An Adobe Creative Cloud membership lets you use your apps on two computers. To use your apps on a third computer, sign out of the app on one of the first two computers. Signing out deactivates all installed Creative Cloud apps and services associated with your Adobe ID on that computer.
To resolve the error and continue using the app on the current computer, try the following solutions.
This option lets you sign out of the app on all other computers. You can use this option remotely, without necessarily having access to the other computers. It's a good option to use if you lost the other computer or you accidentally uninstalled the app without signing out first.
This option lets you sign out of the app manually from one of your other computers. You need access to the other computer, the Internet, and the app on the other computer to use this option.
This option is not available for Lightroom 6 or Acrobat DC if you purchased the app as a standalone (non-subscription) product. It is, however, available for single-app memberships.
Your Adobe ID is the email address you used when you first purchased an Adobe membership, application, or service.
Screen look different?
If you have a Creative Cloud for teams plan or live in a country served by Digital River, Adobe's e-commerce partner, your Manage plan page looks different. After you click Manage plan, if you don't see an Activated devices section, use one of the other methods described above to sign out of your Creative Cloud apps.
To activate a device again, simply launch an Adobe application from that computer. You should be prompted to sign in. If not, choose Help > Sign In.
Remember, you can only have two devices activated at any time. Make sure that you have only signed in to your Adobe apps on one other device before signing in on (activating) a second device.