If no external services, such as basemaps, are displayed within your WebOffice 10.8 SP2 project, have a look at the following proposals:
1. Checking the Server Object Extensions
Have a look at SynAdmin - Map Services: There you can check, if the Server Object Extension (SOE) is active or not. If the SOE is active, the versions of the SynOutputService are displayed in green. Otherwise they are displayed in red. If it is not active, switch to the ArcGIS Server Manager and open the SynOutputService. Open the Capabilities menu and check, if the SOE is actually activate (1). In the next step, you have to verify the correctness of the path to syn_soe_ao_gateway.json. The default path is <ArcGIS Server location> \ Directories \ WebOfficeSystem \ syn_soe_ao_gateway.json> (2). then you have to save and restart the service (3):
Checking the SOE within the ArcGIS Server Manager
Finally, you have to reload the resources of the appropriate project within SynAdmin.
Note: For more information about installing the ArcGIS ServerObjectExtension for WebOffice, see chapter Install ArcGIS Server Object Extension for WebOffice.
Note: For more information about activating the SOE in a map service, please refer to chapter Activate SOE on a Map Service.
2. Creating a local user for Apache Tomcat
If the problem could not be solved by the proposal above, you can alternatively create a local user for the Apache Tomcat service. To do this, click on the Windows icon with the right mouse button and select Computer Management. Within the Local Users and Groups menu - Users, you can define this special Tomcat-User. Make sure that only the checkbox for Password never expires has to be activated:
Creating a local user for Apache Tomcat
Now, this user needs full control to the entire Tomcat installation directory (C:\Tomcat). Click on the Tomcat installation directory with the right mouse button and select Properties. Within the Security menu, you can add the new Apache Tomcat user and assign it the required full control by clicking on the Edit button. Now open the Apache Tomcat service (Configure Tomcat) and enter the created local user with the appropriate password in the Log On menu:
Log On with the local Apache Tomcat User
After saving these settings, restart the Apache Tomcat service.