When configuring entities for a WS-Federation Partnership, it is important to understand that entities for use in this configuration can only be configured with a SAML 1.1 token type, or they will not appear in the drop-down list for a partnership configuration.
Release:
Component: SM AdminUI and WS-Fed
When requesting entity information from your partner for use in a WS-Federation partnership, confirm that they are generating metadata with a SAML 1.1 token type.
If the metadata is generated with a SAML 2.0 token type, it will not appear in list of entities available for use in the WS-Federation partnership.