Ascentium VAS Localisation Pack: The Next-Gen Accounting Standard Localisation Pack for Dynamics 365 Business Central in Vietnam

Vietnam’s accounting environment has entered a new phase. The issuance of Circular 99/2025/TT-BTC, effective from 1 January 2026, represents a significant transition for enterprises operating in Vietnam. For many organisations, the change is not simply about replacing one set of statutory report templates with another. It is a timely reminder that financial reporting, local compliance, internal control and ERP architecture must be designed to evolve together.

For CFOs, Finance Directors, Chief Accountants, IT Directors and ERP leaders, the strategic question is increasingly clear: how can an enterprise remain compliant with Vietnamese Accounting Standards while keeping its core ERP standardised, upgradeable, and aligned with global finance policies? This challenge is especially important for multinational and foreign-invested enterprises, where the Vietnam entity must satisfy local statutory requirements while also reporting to a regional or global parent company under a different chart of accounts, reporting hierarchy, management view, or group accounting standard.

The Ascentium VAS Localisation Pack for Microsoft Dynamics 365 Business Central (D365 BC) is designed to address this challenge. Rather than treating Vietnamese reporting as a collection of fragile customisations, Ascentium provides a structured reporting and localisation layer that supports local compliance, enterprise scalability, and group reporting alignment while preserving the integrity of the ERP core.

Keep the ERP core standardised, while allowing the reporting and localisation layer to evolve with Vietnamese regulations and business requirements

From regulatory compliance to a more flexible reporting architecture

Historically, many ERP localisation projects in Vietnam were approached primarily as compliance projects. A company implemented its global ERP, then additional modifications were developed so the system could produce Vietnamese statutory reports. While this approach could solve immediate requirements, it often created long-term maintenance challenges. Every regulatory change could trigger new development. Every system upgrade could require additional regression testing. Local customisations could conflict with global design principles, and reporting logic could become fragmented between ERP, spreadsheets, and external tools.

Circular 99 creates an opportunity to move away from that model. Instead of embedding every statutory rule and report format deeply into core ERP logic, organisations can adopt an extension-based, configurable financial reporting framework. For Microsoft Dynamics 365 Business Central, the Ascentium VAS Localisation Pack is engineered using Microsoft’s modern AL extension architecture. This allows Vietnamese localization and reporting functionality to be added in a controlled way without unnecessary modification of the standard application.

The result is a cleaner separation of responsibilities: Business Central remains the transactional backbone for finance, procurement, sales, inventory, manufacturing, and other business processes, while the Ascentium reporting layer translates and presents financial information according to Vietnamese statutory requirements and enterprise-specific reporting structures. This architecture helps organisations maintain a cleaner core, reduce customisation debt, and remain better positioned for future ERP upgrades.

Circular 99 readiness as a primary value proposition

Circular 99 is an immediate and important reason for enterprises to review their financial reporting environment. The transition may affect financial statement structures, reporting logic, account mapping, disclosures, and internal accounting policies. Ascentium’s objective is not to treat the new circular as a one-off development project, but to provide a reporting framework capable of accommodating regulatory change in a controlled, sustainable manner.

For Finance and Accounting teams, this means the organisation can focus on accounting policy, mapping, and reporting outcomes rather than rebuilding a large amount of ERP logic. For IT teams, it reduces the pressure to modify the core application every time reporting requirements change. For management, it provides greater confidence that statutory compliance can be maintained without sacrificing the scalability of the enterprise system.

Importantly, the value proposition is not limited to one regulation. Vietnamese accounting and statutory reporting requirements will continue to evolve. The Ascentium VAS Localisation Pack is designed to support the standards and reporting requirements applicable to the enterprise over time – whether the business is transitioning from an older framework, adopting Circular 99, or responding to future regulatory changes.

More than statutory templates: Reports that can grow with the enterprise

A statutory report pack should not become a rigid constraint on the business. Different industries, ownership structures, and operating models require different levels of financial analysis. A manufacturing company may need additional lines for work in progress, production overhead, inventory categories, or factory performance. A distributor may require reporting by channel, branch, product group, or geographical region. A service company may focus on project profitability, department performance, or revenue segmentation.

Ascentium’s approach is therefore to provide more than a fixed set of forms. The reporting framework can be extended with additional financial statement indicators, analytical lines, mapping rules, and presentation structures appropriate to the operating model and scale of the enterprise. This enables a company to preserve statutory compliance while adding the management detail needed to run the business effectively.

That flexibility becomes increasingly valuable as the organisation grows. A business that begins with one legal entity and one location may later operate multiple factories, warehouses, branches, profit centres, or business units. The reporting solution should evolve with that growth rather than force Finance, Accounting, and IT to rebuild the reporting model from the ground up. A configurable VAS layer helps turn localisation from a short-term compliance exercise into a long-term reporting capability.

Simplifying alignment with the parent company’s financial reporting structure

For multinational organisations, one of the most persistent reporting challenges is the gap between Vietnamese statutory accounting and the reporting structure required by the parent company. A Vietnam subsidiary may maintain local accounts and statutory statements according to Vietnamese requirements, while headquarters expects a global chart of accounts, IFRS-oriented classifications, management dimensions, group reporting lines, or standardised consolidation packages.

Without a structured reporting architecture, this gap is often bridged manually. Finance and Accounting teams export trial balances to spreadsheets, remap accounts, rearrange reporting lines, calculate adjustments, and prepare separate group reporting files. The process is time-consuming, difficult to govern, and vulnerable to inconsistency. It can also weaken auditability because the final figures sent to headquarters may be separated from the original ERP transactions by multiple layers of manual manipulation.

The Ascentium VAS Localisation Pack helps simplify this process by providing a more controlled relationship between ERP data, Vietnamese accounting presentation, and parent company reporting structures. Instead of operating two disconnected reporting worlds, organisations can establish clearer mappings from ERP transactions to local VAS financial statements and from those structures to group reporting views.

This is a particularly important benefit for foreign-invested enterprises. Local Finance and Accounting can continue fulfilling Vietnamese statutory obligations, while regional or global Finance receives information in a structure that is easier to understand, compare, and consolidate. In practical terms, Ascentium helps make the reporting language of the Vietnam entity more compatible with the reporting language of the parent company.

One ERP foundation, multiple reporting perspectives

A modern ERP should not require separate accounting systems simply because different stakeholders need different views of the same transaction. A single purchase may affect supplier balances, inventory valuation, statutory accounting, cash-flow planning, cost-centre reporting, and group consolidation. The transaction itself does not change; what changes is how it is classified, mapped, grouped, and presented.

The Ascentium reporting architecture supports this principle by helping separate transaction processing from reporting presentation. Dynamics 365 Business Central remains the system of record for business transactions. The VAS reporting layer presents those transactions according to local statutory requirements. Additional mappings and report structures can then support management reporting and group reporting without duplicating the underlying transaction base.

This model helps organisations move toward a single source of financial truth. It also simplifies reconciliation because statutory reports, management reports, and parent company reports can be anchored to the same ERP data foundation rather than maintained through disconnected spreadsheets and manual files.

Business value at a glance

Value Area	How Ascentium VAS Localization Pack Helps
Compliance	Supports Vietnamese statutory financial and accounting reporting and a structured transition to evolving requirements such as Circular 99.
Flexibility	Allows report lines, financial indicators, mappings and analytical structures to expand with the company’s operating model and scale.
Global alignment	Helps the Vietnam entity organise financial information in a structure that can be more easily mapped to parent company and group reporting requirements.
ERP sustainability	Uses an extension-oriented approach that reduces unnecessary modification of the core Business Central application.
Governance	Creates a more controlled path from ERP transactions to financial statement presentation, improving transparency and reducing spreadsheet dependence.

Protecting the ERP core from fragile customisation

Modern cloud ERP strategy increasingly emphasises the principle of keeping the core clean. Heavy customisation can solve today’s requirement, but it may become tomorrow’s maintenance burden. Custom modifications can increase upgrade effort, testing requirements, technical dependencies, support complexity, and reliance on specific developers or partners.

For Microsoft Dynamics 365 Business Central, the AL extension model provides a more sustainable way to introduce localisation. By positioning VAS reporting as a structured extension rather than deeply altering Microsoft’s standard application logic, Ascentium helps companies preserve greater compatibility with Microsoft’s ongoing product evolution.

For IT Directors, this is an architectural advantage. For CFOs, it translates into lower long-term system risk and a clearer separation between standard ERP capabilities and Vietnam-specific reporting requirements. The enterprise can remain compliant without allowing local reporting needs to compromise the maintainability of the global platform.

Strengthening governance, traceability, and internal control

Financial reporting is not only about the final Balance Sheet, Income Statement, or Cash Flow Statement. It is also about the reliability of the process that produces those reports. When reporting logic is maintained within a structured ERP framework rather than scattered across spreadsheets, organisations can establish stronger control over account mapping, report classifications, version management, reconciliation, and data extraction.

This improves transparency for Finance management and auditors. Users can more easily understand how ERP balances are transformed into financial statement lines. Reporting structures can be maintained in a controlled way, and organisations can reduce their dependence on undocumented spreadsheet formulas or person-specific knowledge.

As companies strengthen internal controls and move toward more disciplined financial governance, the ability to trace reported figures back to a common ERP data foundation becomes increasingly important. The Ascentium VAS Localisation Pack supports that objective by making the reporting layer a managed part of the ERP environment rather than an informal process outside it.

Supporting scale without redesigning the reporting model

A reporting framework should not only fit the organisation that exists today; it should support the organisation the company is becoming. Growth introduces new legal entities, factories, warehouses, cost centres, dimensions, product lines, business units, and consolidation requirements. Each expansion increases the demand for consistent and scalable financial information.

A flexible VAS reporting framework allows these changes to be reflected through configuration, mapping, and controlled extensions rather than a fundamental redesign of the ERP. This makes the solution relevant both to new Business Central implementations and to existing environments where financial reporting has become overly dependent on spreadsheets or legacy customisations.

Creating a common language between Finance, IT, and headquarters

ERP projects often expose competing priorities. Finance and Accounting wants compliance and reporting flexibility. IT wants standardisation, maintainability, and upgradeability. Headquarters wants consistent structures and timely group reporting. Management wants accurate information quickly. A well-designed localisation and reporting layer provides a practical way to reconcile these objectives.

Finance and Accounting can maintain Vietnamese statutory reporting requirements. IT can protect the ERP core. Headquarters can receive information that is easier to align with group structures. Management can benefit from a more consistent and timely reporting environment. The result is not simply another set of reports; it is a more coherent financial information architecture.

Why Ascentium Vietnam

Ascentium Vietnam combines ERP implementation capability with an understanding of the practical financial reporting challenges faced by enterprises operating in Vietnam. The purpose of the Ascentium VAS Localisation Pack is not merely to reproduce statutory forms. It is to provide a scalable Vietnamese financial reporting framework that can become part of the organisation’s broader ERP and finance transformation strategy.

The solution is especially relevant for organisations that want to balance four priorities at the same time: Vietnamese compliance, reporting flexibility, global alignment, and ERP sustainability. By addressing these priorities together, Ascentium helps companies move beyond a narrow localisation mindset and toward a reporting platform designed for long-term enterprise use.

From VAS compliance to enterprise financial intelligence

The transition to Circular 99 is an immediate reason to review Vietnamese financial reporting capabilities, but the larger opportunity is broader. Companies should use this moment to ask whether their reporting architecture is prepared for the next decade of business growth. Can the system accommodate regulatory change? Can additional financial statement indicators be introduced without redesigning the ERP? Can statutory reporting and corporate reporting share the same transaction foundation? Can the Vietnam Finance team reduce spreadsheet-based reconciliation? Can headquarters receive information in a structure that is easier to consolidate? Can Business Central remain upgradeable without accumulating local customisation debt?

These are not only compliance questions. They are questions about the long-term architecture of financial management. The Ascentium VAS Localisation Pack is designed to help enterprises answer them by combining Vietnamese statutory reporting capability, configurable report structures, and a modern extension-based ERP architecture.

For CFOs, this means greater confidence in compliance and financial reporting. For Finance and Accounting teams, it means less manual reconciliation and stronger control. For IT leaders, it means a cleaner, more maintainable ERP environment. For multinational organizations, it means a simpler bridge between Vietnamese statutory accounting and the reporting language of the parent company.

Co-Authors

• Victor Phan: ERP Solution Lead | Ascentium Vietnam
• Kenta Diep: Head of IT & ERP Services | Ascentium Vietnam