You can follow the steps below to relink an AdWords accounts through a new AdWords login email:
1. Go to Link another account page
2. Add and search the new/another AdWords login email
3. Find the AdWords account ID of the AdWords account which you'd like to relink
4. Find the option to relink the account using this new AdWords login email next to the account name.
You can modify the account name in Optmyzr by clicking on the icon next to the account name.
You will only change the name in Optmyzr's interface. It won't affect the name of your account on AdWords.
If you unlinked and AdWords account from Optmyzr by mistake, you can link it again by clicking on the name
You can read how to remove/delete an account here.
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