Hie Bryan,
As of now, integration framework (B1if) version 1.22.0 (delivered with SAP Business One 9.1 PL08 and SAP Business One 9.1, version for SAP HANA PL08), the integration framework provides a Certificate Tool. The certificate tool automates the creation of a root certificate and a self-signed server certificate based on the root certificate, it also deploys the server certificate to the integration framework keystore. Based on the server certificate, the tool creates an SSL certificate for the mobile device that connects to the integration framework with the SAP Business One mobile app.
Have you created your certificate using SAP Certificate tool?
Regards,
Kuldeep