Make sure that the right channel profile is updated against the store and cloud POS URL in the retail channel profile.

If you see "migration_value/" in all channel profiles. If you are on Tier 2 or up environment, Go to the environment in LCS, Commerce>> Manage. Under Commerce Scale Unit >>Click Update. In the Specify a Version drop-down. Select the Current version and Click Update. Once the update is completed, the FnO will be updated with the correct value.
Alternatively, you can get the cloud POS URL and Commerce engine URL from the highlighted links. You can update that manually on the retail channel profile. Make sure that you follow the format you see on the first screenshot.

For a tier 1 box, you should be get the values for cloud POS by clicking on the Login Drop down in LCS environment page.