Step-up is the process of converting an unmatched account to a matched account. Unmatched accounts do not create an association between HSID UUID and
EiMP golden record when they register on HSID. When the user identity information has been delivered to EiMP, (e.g. the user got a valid plan, etc), they can be stepped-up. This process can be initiated through different flows, but this section will cover the step-up initiated by the portal.