During passed two weeks I've been involved into a process of integration Lotus Connections 2.5 with WebSeal, where WebSeal part was covered by Business Partner. The following are the things I have learned during that project.
1. Ask if WebSeal in current configuration allows an access for all users from LDAP, or an access is limited to some group(s)? What are the plans about access to Connections?
Note: In documentation is mentioned that you need to add a user from connectionsAdmin alias to LDAP repository to make DSX work through WebSeal, but if an access to Connections is limited to some group, you need to add this user to this group.
2. Ask if in current environment there is an ability for uses to access to backend servers through HTTP and HTTPs or users have to use HTTPs all the time?
Note: If only HTTPs is available, you have to use https for DSX and dynamicHosts URLs in LotusConnections-config.xml. Here are parts of my LotusConnections-config.xml file as an example:
3. Make him aware, that configuring integration with Lotus Connections is not very clear task and he have to pay attention to documentation!
(InfoCenter and this article: Configuring IBM Tivoli Access Manager SSO for IBMLotus Connections 2.5).
The last lesson is the most important from my point of view :)