We recently added a check tool for the MLS or Listing number associated with your tour. As you create a tour, there is an option to select whether the MLS is Valid, Not Needed or Is Going to change. If you select it is valid, when you approve and publish the tour, we will link it to the websites desired, such as Realtor.com, the MLS (if applicable), Zillow (Yahoo), Trulia and Seetheproperty.com (our own search website). If you mark the MLS as Going to Change, we will not link the tour anywhere.
On the Manage Tours page, there will be a red Update Required! text if the system thinks the MLS is not valid. Just click edit details next to this text to update the listing with the correct information and save at the bottom. The notification should then go away.
This was put into place because some people were confused as to when a tour was published and linked for various websites. We hope this eliminates the confusion and the cases of unwanted distribution.