You may have noticed when checking the "Cloud Link Overview" that your inventory hasn't been fully synced between the on-prem installation and the Cloud instance for a couple of days. Additionally, you may see an error similar to the one below:
What can you do?
Once you log in to your Cloud site, a full synchronization occurs within a few minutes.
Why does this happen?
Synchronization priority is given to active sites.
Regularly logging in to your Cloud site will keep synchronization as current as possible. If you haven't logged in to a particular site in a while, items that are pending to be synchronized will update within minutes of logging in.