October 2025
Three signature standards (EES, FES, QES)
Swisscom Sign now supports all three signature standards: simple (EES), advanced (FES), and qualified (QES). The advanced and qualified standards are available under both Swiss law (ZertES) and EU law (eIDAS). Simple and advanced signatures via a Swiss mobile number do not require an identity verification, while QES (and FES without a Swiss mobile number / under eIDAS) always require one.
| Standard | Identity check | Typical use |
|---|---|---|
| EES (simple) | None | Internal approvals and confirmations |
| FES (advanced) | Only for eIDAS or without a Swiss mobile number | Contracts, HR documents, agreements |
| QES (qualified) | Always | Documents with a legal written-form requirement |
Integration: Choose the signature standard per signer when preparing the process. See Concepts for the process lifecycle.
In the test environment, end-to-end signing is limited to the EES and AES (advanced) levels — QES requires the mobile app, which is not publicly available there.
Related API: signature level set per document (no specific API version)
Guest signing
People you invite to sign no longer need a Swisscom Sign account. They can continue as a guest directly from the invitation link, optionally confirming an OTP code by email or SMS depending on the document's access protection. If a signer already has an account, they can still sign with it.
When a guest signs with FES (without a Swiss mobile number / under eIDAS) or QES, they link an identity on the fly before signing.
Integration: Guest signing lowers the barrier for invitees — no account provisioning is required before they can act on a process.
Related API: platform feature (no specific API version)
New login and accounts
Registration is now possible with just an email address and password, in addition to the existing Swisscom Login and My Swisscom App sign-in. Customers choose the method that suits them best.
Related API: portal feature (no API impact)