The following notes apply to the SAML topic: Creating a Domino metadata file manually, found in the IBM® Domino® Administrator Help, IBM Domino 9.0.1 Social Edition.

1. The "company name" you use when creating the Domino metadata(xml) file is case sensitive, If the correct case is not used, when attempting to export the metadata file, the export process will fail because it can not find the certificate. If you are not sure which case was used, from the server console, type certmgmt show all. This will return the correct company name.
2. The exported Domino metadata file is written by default to the user's Desktop.
3. On the Certificate Management tab, under Certificate management settings, copy and paste the public key hash into the field Certificate public key hash value (base 64) AND copy and paste the "company name" into the Company name field as well. Those are the only two required fields on that tab if you have created the Domino metadata file manually.
4. If the following error, "Illegal null parameter passed to security function" is returned on the server console after attempting to process a SAML assertion, then make sure that the fields Certificate public key hash value (base 64) and the Company name have been added to the idpcat document as instructed above.