Real-Time Inventory Sync in Composable Storefront with SAP Commerce Cloud

[tanvi_singhal]

How can we implement real-time inventory synchronization between a composable commerce storefront and SAP Commerce Cloud using APIs or event-driven architecture, without causing a performance bottleneck?

[balaji_k1]

Hello Tanvi,

Could you help provide additional details on your use case and business needs

Also could you help reference this help page if it answers your query Buy Online, Pick Up in Store (BOPiS)

Regards

Balaji 

[tanvi_singhal]

Hi Balaji,

Thank you for responding.

The use case is to ensure that customers browsing the composable storefront always see accurate stock levels without delays, especially during high-traffic events like sales or product launches. The business need is to avoid overselling while maintaining a smooth user experience.

We are evaluating whether an event-driven approach (e.g., publishing inventory changes from SAP Commerce Cloud in near real-time) would be more efficient than frequent API polling, as API calls could introduce latency or performance overhead. At the same time, we want to understand the best practices for handling inventory synchronization at scale; where thousands of SKUs are involved, without affecting site performance.

Would appreciate guidance on whether SAP recommends a hybrid approach (event triggers plus periodic reconciliation) or if there’s an established reference architecture for such scenarios.

[joris_quenee]

For now, we don't support natively WebStock. And even so, I'm sure it will scale easily and it makes sense for stock data in peak period...

But you could use Angular hydration approach : https://angular.dev/guide/hydration

https://help.sap.com/docs/SAP_COMMERCE_COMPOSABLE_STOREFRONT/eaef8c61b6d9477daf75bff9ac1b7eb4/f27e70...

Idea is to get PDP page from SSR (CDN caching) and activate some hydration (CSR) on user events to fetch latest product stock information.