What is a Released API (C1 contract) in SAP S/4HANA?

A Released API has a C1 stability contract from SAP, guaranteeing backward compatibility across S/4HANA releases. Custom code and integrations using released CDS Views and OData services are upgrade-safe.

Can I use non-released CDS Views in SAP S/4HANA Cloud?

No. In SAP S/4HANA Cloud (Public Cloud edition), only released APIs with C1 contracts can be used in custom code. Non-released objects are blocked by the system. In on-premise systems, non-released objects can be used but may break during upgrades.

What happens when an SAP API is deprecated?

A deprecated API will be removed in a future release. SAP typically provides a successor API to migrate to. CDSee shows deprecation status and, where available, successor information for CDS Views and services.

Guide July 19, 2026

Released APIs and Stability Contracts in SAP S/4HANA

SAP classifies APIs by release state (C1 contract) to indicate stability. Learn what Released and Deprecated mean for CDS Views and OData services.

What Is a Released API?

SAP marks certain CDS Views, OData services, and other ABAP objects as Released. This means SAP guarantees backward compatibility — the API will not change in an incompatible way across S/4HANA releases. This is known as the C1 release contract.

Release States

State	Meaning	Recommendation
Released (C1)	Stable, backward-compatible	Safe to use in custom code and integrations
Not Released	Internal SAP use only	May change without notice — use at your own risk
Deprecated	Will be removed in future	Migrate to the successor API

Why It Matters

Upgrade Safety — Custom code using released APIs survives SAP upgrades without rework
S/4HANA Cloud — In the Public Cloud edition, you can only use released APIs — unreleased objects are blocked
Integration Stability — External systems can rely on released OData services without worrying about breaking changes

How to Find Released APIs

CDSee lets you filter for released objects:

Deprecation and Migration

When SAP deprecates an API, they typically provide a successor — a new released API that replaces the deprecated one. CDSee shows deprecation status and, where available, links to successor objects.