When configuring a space in Admin Portal under Manage > Spaces, you will see only those Work Type options in the dropdown that were defined in the Node_Search_Config.

How to resolve: To add more Work Types to the list, contact IBSS support to add the needed items to the Node_Search_Config.

Read more about Node_Search_Config here: Node_Search_Config settings

Read more about setting up spaces for your organisation here: Managing spaces in Admin Portal