When applying a license to a Foundation an error similar to the following can appear:
OPSMAN_VERSION_CHECK_FAILED: Error connecting to Ops Manager for version check
TAS_VERSION_CHECK_FAILED: Error connecting to Ops Manager for TAS version check
PENDING_CHANGES_CHECK_FAILED: Error connecting to Ops Manager for to check for pending changes
EAR 6+
Tanzu Hub 10+
The user utilized in Tanzu hub to apply a license must exist in the target foundation's UAA
Verify that the user applying the change in the Hub exists in the target foundation UAA