When upgrading to the self service portal t0 some users may see this error message on the subscription view page of the portal.
To fix:
  • Go to Work 365 > Administration > Admin Hub > General > Unit Mapping 
  • Update the unit mapping values for Hours and Days
  • Save. If preferred this can then be unmapped as well just like it was before.
  • Then clear the portal cache.
  • This should resolve the issue.