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Case study • E-Invoicing & GST Compliance

Automating E-Invoicing & GST Compliance in Building Materials

How SAZS Apps ERP transformed compliance operations for crushers, quarries, RMC, and brick plants—achieving 100% accuracy and 97% faster invoicing through seamless government portal integration.

100% GST Compliance
97% Faster Invoicing
Zero Document Rejections
Industries: Crusher, Quarry, Readymix (RMC), Brick Plants
The challenge

Compliance Risks and Manual Bottlenecks

Manual GST compliance creating operational risks

In the high-volume industries of Crushers, Quarries, Readymix (RMC), and Brick Plants, managing tax compliance manually is a major operational risk. This client faced several critical hurdles:

  • Human Error in Taxation: Manual calculation of GST led to frequent errors in tax rates and HSN codes.
  • Slow E-Invoice Turnaround: Accountants had to manually log into government portals to generate IRNs, leading to long queues of trucks waiting at the dispatch gate.
  • Payment Delays: Customers often rejected invoices due to formatting errors or missing QR codes, leading to stalled cash flow.
  • High Admin Costs: A heavy dependency on senior accountants for basic invoicing increased overheads.
The solution

Real-Time GST & E-Invoice Integration

SAZS Apps ERP GST portal integration

SAZS Apps ERP implemented a seamless, "one-click" compliance framework that integrated the weighing process directly with the government's tax infrastructure.

Direct GST Portal Integration
Instant IRN Generation
Auto E-Way Bills
Zero Manual Entry

1. Direct GST Portal Integration
The ERP was linked directly to the GST portal via a secure API. As soon as a truck leaves the automated weighbridge, the system pulls the data and prepares the invoice instantly—no manual typing required.

2. Instant IRN & QR Code Generation
The module automatically generates the Invoice Reference Number (IRN) and QR codes required for legal E-Invoicing. These are printed directly onto the dispatch slip/invoice in real-time.

3. Integrated E-Way Bill Creation
For the Quarry and RMC sectors, where transportation is constant, the system generates the E-Way Bill simultaneously with the invoice. This ensures that no vehicle leaves the premises without 100% legal documentation.

4. Precision for Brick Plants & RMC
Whether it's the piece-rate billing for Brick Plants or the cubic-meter calculations for Readymix, the system applies the correct GST slabs automatically based on the product category.

The results

100% Accuracy and Zero Delays

GST compliance results and performance metrics

The transition from manual filing to SAZS Apps ERP yielded immediate operational benefits:

GST Compliance
100% Accuracy
Every invoice generated is legally verified and error-free.
Invoicing Speed
97% Faster
Invoice time dropped from 20 minutes to just 30 seconds.
Document Quality
Zero Rejections
Clean, QR-coded invoices ensure faster customer approvals and payments.
Independence
Site-Level Control
Site supervisors can now generate compliant invoices without back-office dependency.