Making your systems talk to each other

The problem

Companies rarely run a single system: there's the ERP, the online store, the CRM, finance, the team's spreadsheet. When they don't integrate, people become the integration — copying, pasting and checking data daily.

API integration removes that work: systems exchange information automatically. Store orders land in the ERP instantly; stock updates in the store; confirmed payments settle invoices; new website leads land in the CRM.

When this solution fits

• E-commerce orders are re-typed into the ERP or finance system
• Stock and prices diverge between internal system and online store
• Customer records exist in different versions in each system
• Website leads are copied by hand into the CRM
• Reconciliation across platforms (payment, bank, marketplace) is manual

How Index Group works

We map the systems and available APIs — we work with platforms such as Nuvemshop, Shopify, WooCommerce, payment gateways, WhatsApp, fiscal services and banks, plus custom systems. We define the source of truth for each piece of data and the direction of each sync.

The integration goes live monitored: every exchange logged, a retry queue for failures and alerts on divergence. A good integration is the one you forget exists.