If ZUZU created this Expedia listing for you, you should have received an invitation email to create an account with an automatically generated username and a direct link to create a password for your account. You should store this Login Name safely as you will always need this for all future logins to the extranet.
This is an example of what the email should look like:
Once you have created a password for your account, Expedia requires you to fill in your phone number to do an OTP (One Time Passcode) verification by text message.
After the OTP is verified, you will have your Expedia account accessible for guest messages and reviews.
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Tags: Expedia extranet access, Expedia, extranet account, access, account creation, login details, invitation email, password setup, phone number, OTP verification