One Solution, Multiple Extensions: What the New OneStream Sustainability Solution Means for You

On October 22, we announced the OneStream Sustainability Solution. It replaces and broadens the ESG Reporting & Planning Solution. Many of you are the ones who build, configure, and maintain sustainability processes in OneStream. This post covers what changed and what it means for your work.

From ESG reporting to sustainability management

For many organizations, sustainability started with reporting. New disclosure requirements meant collecting the right data, putting controls around it, and producing numbers people could trust.

That work still matters. But Finance teams now also want sustainability data to inform investment decisions, capital allocation, and operational planning. The new solution is built to support that shift. Compliance is the entry point, and sustainable performance is the outcome.

An extensible architecture

The Sustainability Solution sits at the center, and you enable specialist extensions as your requirements grow:

• ESG Reporting Manager handles regulatory and voluntary ESG disclosures. It is available today.
• Carbon Performance Manager tracks and manages emissions performance. It is available today.
• EU Taxonomy Manager supports EU Taxonomy reporting. It enters Private Preview in early 2027.

OneStream plans to release additional extensions and flexibility throughout 2027.

You can start with the capabilities you need now, such as ESG reporting. If your organization later needs carbon performance management, you add that extension instead of standing up a separate product.

Why this matters to the people doing the work

Every extension shares one user experience, one security model, and one data foundation. That has practical effects:

• No separate applications to integrate and administer. Adding a capability doesn’t mean adding another system, another set of integrations, or another administration burden.
• One security model. You manage access the way you already do, rather than learning a new approach for each extension.
• One data foundation. Sustainability data stays consistent across extensions, so you aren’t reconciling data between disconnected tools.
• One environment for your users. Your users don’t have to learn a new interface each time requirements change.

Sustainability and Finance on one platform

Sustainability and Finance now run under one governance framework, with the same controls, auditability, and planning and reporting foundation. If you’ve spent time making financial processes reliable, you can apply the same rigor to sustainability data. That makes it easier to move from looking back at what you must disclose to using the data in forward-looking decisions.

More flexibility in data collection

Sustainability metrics don’t all follow the same collection methods, frequency, or organizational structures. This release adds:

• Year-to-date and periodic data collection options. These are available by definition and by factors, and the choice carries through to the downstream data collection process.
• More granular security roles. You get finer control over who can see and do what.
• Usage telemetry. You get better visibility into how the solution is being used.

Together, these let you fit sustainability processes to how your business operates while keeping enterprise-level governance and control.

What this means for existing ESG customers

The OneStream Sustainability Solution replaces and broadens the ESG Reporting & Planning Solution. The change is a broader offering, not just a new name. If you’re running ESG reporting today, ESG Reporting Manager is the extension for regulatory and voluntary disclosures, and you can add other extensions as your needs evolve. You don’t have to make the transition all at once.

Learn more

To see how Sustainability, Finance, and Operations connect on the platform, visit the OneStream Sustainability page.