Landmark

Customer story

Landmark

Retail · Lifestyle · Hundreds of stores · daily IRN

The implementation

Landmark runs multi-store gst + irn automation on the WhiteBooks API platform. The integration was deployed in production via the standard GST API, e-Invoice API, and e-Way Bill API endpoints — same endpoints documented in the public OpenAPI specs.

Why WhiteBooks

Platform SLA — applies to every customer

Hundreds of stores · daily IRN
Landmark workload
99.99%
Uptime SLA (all customers)
< 350ms
p95 latency (all customers)

Other customer stories

See all 35 customer stories →

Build on the same platform

The WhiteBooks API platform is open to all enterprise teams. Same APIs Landmark uses — same SLA, same SDKs, same pricing tiers.

Explore the WhiteBooks API platform → Talk to a Solution Architect