I need to change the email address I use to sign in to CATALYST.

You can change your email address in CATALYST if:

• You are able to sign in with your original email address, and
• You responded to the original CATALYST account confirmation email, and
• You don't already have an existing CATALYST account using the new email address.

Changing your CATALYST account email address

After signing in:

1. Click your email address or name in the upper right of CATALYST and select "Profile" from the menu. 
2. Next to your email address on your Profile page, click the "Change" link.
3. Once you save your new email address, CATALYST will sign you out and send an account confirmation email to the new email address.
4. Click the link in the new confirmation email.
5. You can now sign in with your new email address and original password.

For security reasons, is not possible to combine two different CATALYST accounts into one.