SSO (single sign-on) lets a user log into a DAM using the identity they already have with their organization — the same login that gets them into email or their laptop — instead of a separate username and password created just for that one tool.
In plain English
Without SSO, every tool a team uses needs its own account: its own password, its own reset flow, its own place where a departing employee's access has to be manually revoked. SSO connects the DAM to a central identity provider (common examples are Okta, Microsoft Entra ID, or Google Workspace) so that logging in is really just proving you're already signed into that central system. The DAM trusts the identity provider's word for who you are, using a standard protocol (commonly SAML or OIDC) to check.
The practical benefit isn't really convenience, though one password to remember is nice — it's control. When someone leaves the organization or changes role, disabling their account in the central identity provider is enough; there's no separate DAM password sitting around that IT forgot to revoke. That single point of control is exactly what security reviews and compliance audits are checking for.
SSO handles authentication (proving who you are). It's commonly paired with, but distinct from, SCIM provisioning, which automates account lifecycle — creating, updating and removing DAM accounts automatically as people join, move, or leave in the identity provider, rather than an admin doing it by hand for every single tool.
Why it matters in a DAM
SSO support is rarely the deciding factor for a small team evaluating a DAM, but it's often a hard requirement once an organization crosses a certain size or works with any regulated industry — IT security policy may simply prohibit standalone tool passwords entirely. Checking for real SSO support (not just "we support SSO" in marketing copy, but a documented, working SAML/OIDC integration) is worth doing early if your organization already has that requirement, since it can silently rule out otherwise-good tools.
Buyer’s test: if your organization requires SSO, ask during a trial whether it's included on the plan tier you're actually evaluating — SSO is frequently gated behind the top enterprise tier specifically, not available on a mid-tier plan even if the vendor's homepage lists it as a feature.
Related terms
See it in action
Our best DAM software for granular permissions ranking covers which tools pair SSO with deeper access-control features like SCIM provisioning.