How to Implement E-Invoice in Dynamics 365 (Finance & Operations and Business Central) in Vietnam
Electronic Invoice (E-Invoice) is mandatory for businesses operating in Vietnam. Companies using Microsoft Dynamics 365 Finance & Operations or Dynamics 365 Business Central must integrate their ERP system with licensed e-invoice providers such as VNPT, Meinvoice, EasyInvoice, Wininvoice, or other government-approved platforms.
In this article, I will explain how e-invoice integration works in Dynamics 365 and how companies can implement it effectively using a localization solution.
1. Overview of E-Invoice Integration
In Vietnam, ERP systems cannot directly submit invoices to the tax authority. Instead, invoices must be sent through a certified e-invoice provider that connects to the government system.
The typical integration flow works as follows:
- Sales Invoice is posted in Dynamics 365
- Invoice data is exported to the E-Invoice Integration Module
- The module sends invoice data to the E-Invoice Provider
- The provider processes and submits the invoice to the Vietnam Tax Authority
- The signed invoice number, PDF, and XML are returned to Dynamics 365
This process ensures that the company remains compliant with Vietnamese tax regulations.
2. Common Challenges in Dynamics 365
Many companies implementing Dynamics 365 in Vietnam face several challenges when working with e-invoices:
- Standard Dynamics 365 features do not fully support Vietnam's e-invoice requirements
- Each e-invoice provider has different APIs and integration formats
- Local compliance requirements such as invoice symbols, serial numbers, and tax authority codes
- Handling invoice adjustments, cancellations, and replacements
- Monitoring invoice status between ERP and provider systems
Without a proper localization solution, companies usually need to build custom integrations, which can increase development time and maintenance effort.
3. Localization Solution for Vietnam
To simplify this process, we provide a ready-to-use localization solution for E-Invoice integration designed for both Dynamics 365 Finance & Operations and Dynamics 365 Business Central.
The solution includes the following capabilities:
- Standard Integration Framework that connects Dynamics 365 to multiple e-invoice providers
- Multi-provider support such as Meinvoice, VNPT EIMS, EasyInvoice, and Wininvoice
- Automatic invoice submission when posting sales invoices
- Invoice status tracking within the ERP system
- Automatic retrieval of invoice number, PDF, and XML
- Error monitoring and logging for integration troubleshooting
4. Implementation Approach
A typical implementation process includes the following steps:
Step 1 – System Setup
Configure company information, invoice templates, digital signature settings, and provider connection parameters.
Step 2 – Provider Integration
Set up API connections between Dynamics 365 and the selected e-invoice provider.
Step 3 – Data Mapping
Map Dynamics 365 invoice fields to the required structure defined by the provider's API.
Step 4 – Testing
Perform integration testing using the provider's sandbox environment to validate invoice submission and responses.
Step 5 – Go-Live
Deploy the integration in production and begin issuing official electronic invoices.
5. Benefits of Using a Localization Solution
- Faster implementation timeline
- Reduced custom development cost
- Compliance with Vietnamese tax regulations
- Easier maintenance and upgrades
- Flexibility to integrate with multiple e-invoice providers
Conclusion
Implementing e-invoice integration in Dynamics 365 Finance & Operations and Dynamics 365 Business Central is essential for businesses operating in Vietnam.
Due to local compliance requirements and differences between providers, using a ready localization solution helps companies integrate faster, maintain compliance, and reduce development risks.
Author
Song Nghia
Technical Manager
I specialize in Dynamics 365 customization, integration, and localization solutions in Vietnam, helping companies implement ERP systems efficiently and compliantly.

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