ERP & enterprise API integration · Case study

400+ APIs Configured for One Client:Building a Connected Enterprise Ecosystem

From ERP and Microsoft Dynamics 365 integration to banking, GST, e-invoicing, e-way bills and government verification services, Bigsun Technologies enables seamless data exchange across critical business systems.

Already have REST APIs? Share them and we configure everything from start to end, and deliver quickly. See how it works

Client profile
Enterprise client, India (name withheld)
Scope
API configuration and enterprise system connectivity
Connected platforms
ERP, Microsoft Dynamics 365, banks, tax, government and quick commerce point of sale services
APIs configured
400+

The situation

Why disconnected systems slow a growing business

Organisations that run on several platforms tend to meet the same problems as they grow. These are the broader challenges that a strong enterprise API integration capability is meant to address.

Disconnected business applications force teams to re-enter the same data in more than one place. Exchanging information between an ERP and external systems becomes slow, and keeping data consistent across platforms gets harder with every new application.

Financial and statutory requirements add more weight. Customer, vendor and business details often need to be verified by hand, and reconciliation and transaction processing can lag behind the business.

As a business scales, a centralised approach to API integration stops being optional. It gives every connected system one managed way to exchange data.

  • Disconnected applications
  • Repeated manual data entry
  • ERP-to-external-system exchange
  • Statutory compliance
  • Manual verification
  • Reconciliation delays
  • Inconsistent data

Bigsun's solution

400+ APIs configured to connect ERP, finance and government services

For one client, Bigsun Technologies configured and implemented more than 400 APIs as part of its API integration services. They let ERP software, financial systems, banking platforms, government portals and third-party applications communicate with each other, so information moves between systems without being rekeyed.

A. ERP integration solutions

  • Microsoft Dynamics 365 (D365) integration
  • ERP-to-ERP data exchange
  • Third-party application integration
  • Automated business data exchange
  • Financial and operational system connectivity

B. Banking API and financial integrations

  • Bank API integration
  • Banking information exchange
  • Financial transaction data integration
  • Reconciliation-related integrations

C. Government API integration and identity verification

  • Aadhaar API
  • PAN API
  • MCA API
  • GST Public API
  • GST Taxpayer API

D. GST API integration and statutory compliance

  • GST E-Invoice API and GST E-Way Bill API
  • GST Analytics API
  • TDS Compliance Check API
  • TDS Return – TIN FC API and TDS Certificate API
  • TDS Analytics, TCS Analytics, TDS Reports and TCS Reports APIs

E. Income Tax API and financial intelligence

  • Income Tax OCR API
  • Income Tax Calculator API
  • Tax P&L API
  • Income Tax Reporting API
  • TDS Calculator API
  • TCS Calculator API

F. Quick commerce, currency and PIN code APIs

  • Quick commerce point of sale (POS) APIs
  • Currency API
  • PIN code API

These are examples from Bigsun's API ecosystem. The 400+ APIs configured for this client are not limited to the services named on this page.

API ecosystem

One Integration Ecosystem. Hundreds of Possibilities.

Every category below connects back to the enterprise ERP at the centre, through a single managed integration layer.

Enterprise ERP & Microsoft Dynamics 365

The core system of record

Bigsun API integration layer

  • 01

    ERP & Enterprise Integrations

    Dynamics 365, ERP-to-ERP exchange and third-party applications.

    • Microsoft D365
    • ERP-to-ERP
    • Third-party apps
    • Quick commerce POS
  • 02

    Banking & Financial Services

    Banking information and transaction data flowing into finance workflows.

    • Bank APIs
    • Transaction data
    • Reconciliation
    • Currency
  • 03

    Government & Identity Verification

    Verification of identity and business details at the source.

    • Aadhaar
    • PAN
    • MCA
    • GST Public
    • GST Taxpayer
    • PIN code
  • 04

    GST & E-Invoicing

    Statutory GST documents generated through connected systems.

    • E-Invoice
    • E-Way Bill
    • GST Analytics
  • 05

    Income Tax & TDS/TCS

    Tax calculation, document capture and TDS compliance services.

    • Income Tax OCR
    • Income Tax Calculator
    • TDS Calculator
    • TCS Calculator
    • TDS Compliance Check
    • TDS Return – TIN FC
    • TDS Certificate
  • 06

    Business Intelligence & Analytics

    Tax analytics and reporting drawn from connected data.

    • TDS Analytics
    • TCS Analytics
    • TDS Reports
    • TCS Reports
    • Tax P&L
    • Income Tax Reporting

Already have REST APIs?

Share your REST APIs. We configure everything, start to end.

If your bank, a government service provider, a vendor or your own systems already expose REST APIs, you do not need to build the connection yourself. Give us the REST APIs and Bigsun configures everything from start to end and delivers the integration quickly.

The same team that configured 400+ APIs for one client takes the work from the first configuration to a working connection with your ERP, so your people can stay on their day-to-day work.

Talk to us about your REST APIs

  1. Step 1

    You share the REST APIs

    Provide the REST APIs of the bank, vendor, government service or internal system you want connected.

  2. Step 2

    We configure it end to end

    Bigsun handles the configuration from start to end, so the work does not sit with your team.

  3. Step 3

    Connected to your ERP

    Data moves between the external service and your ERP, delivered quickly.

Business value

What a large API ecosystem gives a business

A connected integration foundation changes how information moves between systems, and how much of that movement depends on people.

  • Less dependency on manual data exchange between systems.
  • Better connectivity between enterprise applications.
  • More streamlined financial and statutory workflows.
  • Easier access to external verification services.
  • More consistent information across connected systems.
  • Improved operational efficiency in day-to-day work.
  • A scalable foundation for evolving business requirements.

Why Bigsun Technologies

An enterprise technology partner for complex, connected systems

Bigsun combines ERP product knowledge with hands-on enterprise software integration, so connected systems are planned around the way the business actually runs.

See how the same team works in our financial accounting software case study and our NBFC loan management platform case study.

Extensive API integration experience

400+ APIs configured for one client.

ERP and Dynamics 365

ERP and Microsoft Dynamics 365 integration capabilities.

Banking and financial connectivity

Connections to banking and financial systems.

Government and statutory APIs

Integrations with government and statutory services.

GST, e-invoice and e-way bill

Integrations for GST, e-invoicing and e-way bills.

Industry-specific ERP expertise

Business process automation built on ERP experience.

Questions

API integration: common questions

What is ERP API integration?

It is the use of APIs to let an ERP exchange data with other applications and external services, such as banks, tax platforms and government portals, instead of relying on manual entry.

Why does enterprise API integration matter as a business grows?

More applications and compliance requirements mean more data to move and keep consistent. A centralised approach to enterprise software integration gives each connected system a managed way to exchange information.

What API integration services does Bigsun offer?

Bigsun configures APIs that connect an ERP with other business applications, banks, tax platforms and government services. Examples include Microsoft Dynamics 365 integration, banking API integration, GST API integration (e-invoice and e-way bill), TDS and TCS API integration, Income Tax APIs, quick commerce point of sale (POS) APIs, Currency and PIN code APIs, and identity and business verification APIs.

What if we already have REST APIs from our bank, vendor or internal system?

Share them with Bigsun. If you provide the REST APIs, we configure everything from start to end and deliver the integration quickly, so your team does not have to build the connection itself.

Can Bigsun integrate with Microsoft Dynamics 365?

Yes. Microsoft Dynamics 365 integration is part of the ERP integration work Bigsun has delivered, alongside ERP-to-ERP exchange and third-party application integration.

Does Bigsun support GST, e-invoice and e-way bill API integration?

Yes. The APIs configured for this client include GST E-Invoice and GST E-Way Bill APIs, along with TDS and TCS compliance, reporting and calculator services.

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Work with us

Your Business Needs More Than Software. It Needs Connectivity.

Whether you need ERP integration, banking connectivity, GST automation, government API integration or enterprise application connectivity, Bigsun Technologies helps bring your business systems together. Have REST APIs ready? Share them and we configure everything from start to end.

Bigsun Technologies Pvt. Ltd. is a Mumbai-based enterprise software company offering ERP, financial accounting, CRM and NBFC lending platforms, with digital transformation consulting.

Published . This case study describes work delivered for one client. The client's name and details are withheld for confidentiality.