Expedia Partner Solutions partners (booking partners) should read here for more relevant information.
If you are an Expedia Group Lodging Partner (hotelier) you should have access to Expedia Group Partner Central: https://www.expediapartnercentral.com/
Sign in to Expedia Partner Central
You can sign into your account to view reservations and access resources here
Forgot your password?
Select the Forgot your password? link and enter the email alias associated with your account. You will receive an email with additional information and links to reset your account password.
Don't have an account or recall your email alias?
If you don't recall the email associated to your user account please select Contact Expedia Group
Select My account and a list of available account management options will be presented. Choose the one most applicable to your issue.