Manual JSON upload
A separate JSON upload for every single invoice.
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SAP · e-Way Bill · GSP-Certifiede-Way Bills from SAP. Instant. Zero ABAP.
Generate, update and cancel e-Way Bills directly from SAP ECC or S/4HANA. The WhiteBooks SAP connector handles auth, retries and ledger sync.
SAP B1 · S/4HANA · ECC · ByDesignISO 27001:2022Direct GSTN license
SAP e-Way Bill ConnectorSAP e-Way Bill, powered by WhiteBooks
Real-time e-way bill flow from SAP to NIC and back — accurate, compliant, and hassle-free.
SAP
SD / MM / FI
Despatch Data Generated
e-Way Bill Cockpit
GSP Layer
WhiteBooks GSP
Validation & Enrichment
- Transport Details Validation
- Distance & Vehicle Checks
- De-duplication Check
- Digital Signature
- Part-A / Part-B Assembly
NIC Layer
NIC – EWB
EWB Registration
- EWB Number Generation
- Validity Window Applied
- Part-B Vehicle Updates
Transporter
Transporter
EWB Received
- EWB Available for Transit
- Print & Carry Copy
- Part-B Updates Enabled
EWB + Validity
Posted back to SAP
The problem
Is your SAP team still manually uploading JSON to the GST portal?
Stop wasting hours on manual data entry and IRN rejections.
IRN rejections
One wrong field breaks the entire batch.
No audit trail
Reconciliation becomes a nightmare against the GST portal.
The real cost — at just 1,000 invoices / month
₹12L+Annual labor cost
300+Hours wasted / month
HighGST penalty risk
The solution
One connector. Complete automation.
Real-time, end-to-end — from SAP document posting to a signed IRN.
01
Real-Time Engine
Instant IRN & QR via the NIC API
<1 sResponse time
02
Smart Mapping
IDOC to JSON, automatically
24/7Monitoring
03
Zero Manual Work
Fully automated workflow
0Human intervention
04
Audit Ready
Complete compliance trail
7 yrsData retention
Compatibility
Works with your SAP
From SAP B1 to S/4HANA — we support every major SAP platform.
SAP Business One
Most Popular- REST API / Add-on
- SQL & HANA DB
- All versions supported
SAP S/4HANA
Enterprise- API + Middleware
- OData Integration
- Cloud & On-Premise
SAP ECC
Legacy Support- RFC / BAPI
- IDOC Processing
- All ECC versions
SAP ByDesign
Cloud Native- REST API
- OData v2
- SOAP Gateway
Plus SAP Ariba, Concur, Cloud ERP, SuccessFactors & more
View Full CompatibilityArchitecture
How it works
Three layers. Infinite reliability. Zero manual work.
1Layer 1
SAP
- WhiteBooks SAP add-on with JSON extractor
- Invoice cockpit for IRN & e-Way Bill processing
- Receives ACK number, ACK date & IRN number
- Receives e-Way Bill number with generation & expiry date
2Layer 2
WhiteBooks Server
- Uploads SAP data securely to the govt. server
- Smart error handling with pre-validations
- Generates e-Way Bill & e-Invoice in seconds
- Stores e-Way Bill & e-Invoice data for 7 years
- Smart, insightful compliance reporting
3Layer 3
Govt. Server
- Validates invoice data as per GSTN rules
- Generates IRN and digitally signed JSON
- Returns QR code & acknowledgement details
- Real-time e-Way Bill validation & response
4Layer 4
e-Invoice Generation
- IRN generation & invoice registration
- Acknowledgement number & date confirmation
- Signed QR code generation
- e-Way Bill number with validity details
- Smart, insightful compliance reporting
Enterprise
Enterprise features
Built for big SAP clients with demanding requirements.
High-volume processing
100,000+ invoices / day
Branch & entity-wise mapping
Multi-location support
Multiple company codes
Centralized management
Failover retry engine
Automatic error recovery
Batch & scheduled runs
Off-peak processing
Multi-GSTIN management
Consolidated dashboard
Bulk reconciliation
Automated matching
Advanced search & filters
Quick data retrieval
Analytics & API webhooks
Real-time data alerts
The transformation
From spreadsheets and manual work to automated workflows
Save hours, eliminate errors and build audit-ready operations with WhiteBooks.
01Before WhiteBooks
8+ hours/dayProcess time
30–40%Error rate
Every invoiceManual work
HighCompliance risk
NoneAudit trail
LowTeam satisfaction
02WhiteBooks Engine
Automation EngineWhiteBooks
GST ReadyAudit TrailMaker-CheckerConnected Workflows
8 hrs/day
saved
0%
errors
100%
audit logs
24×
faster
03After WhiteBooks
<1 secondProcess time
0%Error rate
ZeroManual work
NoneCompliance risk
100% completeAudit trail
HighTeam satisfaction
Connected workflow
Create Invoice
Approval
GST Sync
Audit Log
Export
The outcome
24×Faster processing
8 hrsSaved daily
0%Errors
100%Audit trail
Life after WhiteBooks
09:00Invoice created
09:01Approval completed
09:01GST synced
09:02Audit log generated
09:02Evidence exported
For developers
Developer-friendly integration
Built by developers, for developers.
API documentation
Complete REST API documentation with examples.
Sandbox environment
Test the integration before going live.
Multiple language SDKs
Java, Python, Node.js & .NET libraries.
Error codes
Detailed error messages with solutions.
Postman collections
Ready-to-use API collections.
Webhook events
Real-time notifications for events.
generate-einvoice.js
import WhiteBooksConnector from 'wb-sap';
const connector = new WhiteBooksConnector({
apiKey: 'your_api_key',
environment: 'production'
});
const result = await connector.generateEInvoice({
sapDocNumber: 'INV-2024-001',
gstin: '29AABCT1234D1Z5',
autoSubmit: true
});
console.log(result.irn);
console.log(result.qrCode);Proof
Proven results
Real companies. Real ROI. Real fast.
Leading auto-parts manufacturer
100k invoices automated in 5 days
300+ hrsSaved / month
40% → 0%Error reduction
₹15LROI annually
WhiteBooks transformed our entire GST compliance process overnight.
Fortune 500 FMCG enterprise
Zero IRN rejections achieved
150+Branches
100%Automation
PerfectCompliance score
Finally, real-time GST compliance that actually works with SAP S/4HANA.
Multi-state pharmaceutical distributor
50+ GSTINs managed centrally
10K+Daily invoices
<1 sProcessing time
ZeroAudit issues
The reconciliation alone saves us two full-time employees worth of work.
The logic
Why this works
A proven methodology with predictable results.
1
Because SAP uses IDoc
2
Which always has to be converted to JSON
3
And JSON needs to be mapped to the NIC portal
4
Using standard, standardized IDOC fields
5
All business logic is handled at the middleware level
6
You're literally installing a compliance confidence booster
Frequently asked Questions.
What does the SAP e-Way Bill Connector do?+
It auto-generates e-Way Bills from SAP documents via the NIC channel, pulling vehicle and transporter details straight from SAP master data.
Which SAP modules does it integrate with?+
SD (sales / billing), MM (purchases) and LE (logistics execution); custom transactions are supported via BAdIs.
Can it handle multi-vehicle / trans-shipment?+
Yes. It supports Part-B updates for vehicle reassignment and multi-vehicle journeys.
How is EWB validity tracked?+
The connector pulls expiry into a SAP dashboard and triggers extension workflows for expiring EWBs still in transit.
How long is deployment?+
Typical go-live is 3–5 weeks: discovery, sandbox, mapping, UAT and production.
Get started
Stop manual GST uploads. Start automating today.
Join 100+ SAP enterprises achieving 100% GST compliance with zero manual work.
100+Enterprise clients
1M+e-Invoices processed
100%Uptime guaranteed
<5 minSetup time