Akumina enables the configuration support for Microsoft Cloud App Security (MCAS). Once you complete the security configuration, visit Akumina AppManager to allow the override URLs.
Please note once the MCAS is enabled, your tenant URL will have region name appended; for example, https://<TENANT>.sharepoint.com will become https://<TENANT>.sharepoint.com.us2.cas.ms, you might be able to see multiple URLs based on the regions configuration.
Navigate to AppManager > Settings > Tenant Setting, then add/update the field HostedAppHostNameOverride with the following value format:
If you have more than one value, add multiple values using comma separated delimiters.