A product's extension must be installed before ePO - On-prem can manage the product.
Make sure that the extension file is in an accessible location on the network.
For details about product features, usage, and best practices, click ? or Help.
From the ePO - On-prem console, select Menu → Software → Extensions → Install Extension.
Browse to and select the extension file, then click OK.
You can only have one task updating the Main Repository at once. If you try to install an extension at the same time as a Main Repository update is running, the following error appears:
Unable to install extension com.trellix.core.cdm.CommandException: Cannot check in the selected package while a pull task is running.Wait until the Main Repository update is done and try to install your extension again.Verify that the product name appears in the Extensions list.