WCC: WebCenter Spaces roles missing under WCC/UCM Admin Applet view

Unable to see the below WebCenter Roles from UCM system ( Admin Applet section of Security Tab).

1. PersonalSpacesRole
2. WebCenterSpacesUserRole

Tried to verify communication from WebCenter Spaces  to Content Server and the required configuration is not available. 

Also when we tries to check Documents tab from WebCenter Spaces server from Oracle EM, getting below error.

"Document Service is unavailable as there is no default content repository connection"

To fix this issue, followed below steps.

1. Connect to EM --> WebCenter > WebCenter Spaces > WC_Spaces1 (&2) > Settings > Service configuration > Content Repository >

2. Add the Required data of UCM RIDC Info. Refer the below info.

Name and Type:

- Connection Name - UCM

- Repository Type - Oracle Content Server

- Active Connection - selected

WebCenter Spaces Content Respository:

- Content Administrator - weblogic

- Root Folder - /webcenter

- Application Name - webcenter

Connection Details:

- RIDC Soctet Type - Socket

- Server Host - RIDC_HOST ( Load Balancer Host Name of  UCM RIDC Host)

- Server Port - 4444  ( UCM RIDC Port)

- Connection Timeout (ms) - 30000

- Authentication Method - Identity Propagation

- Web Server Context Root - /cs

- Administrator User Name - sysadmin

Cache Details:

- Cache Invalidation Interval (minutes) - 0

- Maximum Cached Document Size (bytes) - 1024

Once this configuration is done, then we are able to see the required WebCenter Spaces role(s) at UCM side ( Admin Applet section under /cs URL).