After configuring an LDAP connection, the next step is to create an LDAP password credential validator (PCV).
Complete the steps in Configuring the LDAP Username Password Credential
Validator in the PingFederate documentation.
If you need to support multiple Office 365 subdomain accounts using one SP connection in PingFederate 7.2 or later, create additional LDAP PCVs against your LDAP data store connections. For more information, see Configuring an LDAP connection.