Turn Power BI from insight into action.
Power BI has evolved from a reporting tool into a business application platform. So why add another platform in between?
accoTOOL is built around a simple principle: keep your data where you own it, keep Power BI at the centre, and add writeback and business interaction directly where your users already work.
Acterys — now part of Vena — takes a different architectural approach. It provides a broader planning platform around Power BI, with its own application, modelling and synchronization layer. For organizations looking for enterprise-grade writeback and planning inside their existing Microsoft ecosystem, that architectural difference matters.
Two approaches. One clear difference.
Both add writeback to Power BI. The difference is how much architecture you take on to get it.
The biggest difference is not the feature list. It is the architecture.
Many writeback solutions make Power BI the front door — but not the actual platform. With an Acterys architecture, Power BI connects into an additional application and modelling environment that synchronizes with your underlying data. That can be powerful if you want a broader FP&A platform. If your objective is simply to make your existing Power BI and Fabric environment interactive, it is another layer to operate, secure, govern and depend on.
Why add another layer if you do not need one?
Keep your data where it belongs.
Modern Microsoft data architectures are built around Microsoft Fabric, Azure SQL, SQL Server and other governed enterprise platforms. accoTOOL fits directly into that architecture — your data stays in the environment you control, and accoTOOL provides the Power BI experience that lets users interact with it.
Your security model
Writeback data stays inside your existing security model, governance framework and Microsoft tenancy — not a vendor ecosystem alongside it.
No synchronization question
No separate model to keep in step, and no question of what data passes through a third layer or where processing happens.
No exit tax
Your data strategy should not become dependent on your writeback vendor. Replace any part of the stack without unwinding a planning platform.
Less architecture. Less risk. Less lock-in.
There is a fundamental difference between buying a writeback capability and buying another platform. accoTOOL complements your Microsoft architecture rather than replacing it — so you can change your data warehouse, Fabric architecture, SQL environment, semantic models, reports or integration layer without making your planning environment dependent on a proprietary platform.
That is what we call Microsoft-native freedom.
A suite of Power BI-native business interaction tools.
accoPLANNING
Turn Power BI into an interactive planning and forecasting environment. Users enter, adjust and manage planning data in the report they already use.
accoMASTERDATA
Maintain and enrich master data directly from Power BI — no separate master-data application for the most common business scenarios.
accoCOMMENT
Add structured business context to your data: comments, metadata, ratings, tags and attachments alongside the numbers they explain.
Built for transactions — not just planning models.
Transaction Keys let you uniquely identify and update individual records, which opens up use cases far beyond traditional budgeting. Instead of forcing everything into a planning cube or application model, accoTOOL works with the transactional structures that already exist in your data architecture.
Business users do not want enter → wait → synchronize → refresh → check. They want enter → update → see the result. accoTOOL is designed around fast interaction with the underlying writeback architecture, so it feels like a native Power BI application rather than a planning system bolted on.
Build faster. Adapt faster. Deliver faster.
accoTOOL is designed to take advantage of modern AI co-building capabilities, including Claude and Microsoft Copilot. Our consultants use AI as an engineering co-pilot to accelerate solution design, Power BI development, data modelling, SQL, writeback logic, configuration, testing and documentation — moving from requirement to prototype to working solution far faster.
Shorter implementation cycles
Faster POCs and faster iterations, because repetitive components no longer get built from scratch.
Close to your own stack
The co-building happens around Power BI and the standard Microsoft data technologies your team already runs.
Lower implementation cost
AI does not replace the consultant. It makes the consultant faster — and that shows up in the invoice.
And then there is the price.
Acterys positions itself as an enterprise planning and analytics platform rather than a Power BI visual, and that broader platform comes with broader platform economics. accoTOOL takes a different approach: you pay for the capability you actually need. You should not have to buy an entire FP&A platform simply to add writeback to Power BI.
More focused. More transparent. Typically a fraction of the cost.
Choose the architecture that makes sense for you.
You are looking for a broader enterprise planning and FP&A platform, with extensive planning functionality, modelling and application capabilities beyond Power BI.
You want to extend Power BI and Microsoft Fabric with powerful writeback and business interaction — without an unnecessary additional application layer.