Option 1: Go to SETTINGS->CHANNEL MANAGER ->EXPEDIA and click on the "Get the Expedia.com Room and Rate Codes for this Property Code" in link to view the room and rate mapping for your property.
Note: The channel manager can only not update parent rate codesplan id`s with the acquisition type "linked". Linked rates rate plan IDs are derived from parent rates which are automatically calculated by Expedia.
'''Option 2:''' To find your hotel and room id's login to Expedia.