Connect Big Delivery with STM Express in minutes and automate any workflow between them — no code, no developers, no complicated middleware. eGrow ties Big Delivery and STM Express together over a secure API so when something happens in one, the right thing happens in the other in real time.
Sync customers, orders, statuses and any custom field between Big Delivery and STM Express, trigger actions across both apps from a single workflow, and unify reporting in one place. Set up in 5 minutes with free white-glove onboarding.
Pick a flow to start from, customise it in eGrow's no-code builder, and turn it on.
The Big Delivery and STM Express integration connects Big Delivery to STM Express through eGrow's no-code automation engine. You build a workflow once — pick a trigger from Big Delivery, choose an action in STM Express, map the fields — and eGrow keeps both apps in sync from then on, in real time, with no developers required.
Common things teams automate between Big Delivery and STM Express: sync new Big Delivery records into STM Express, push STM Express updates back to Big Delivery, fan out one event in Big Delivery into multiple actions across STM Express, alert your team in chat when something breaks, and unify customer data so both systems see the same source of truth.
Setup takes about 5 minutes. Sign up for eGrow, authorise Big Delivery, authorise STM Express, drag-and-drop a workflow between them and turn it on. Free white-glove onboarding is included with every plan — a real account manager will build your first workflow with you over a screen-share.
eGrow is purpose-built for e-commerce and operations teams: the Big Delivery + STM Express integration runs alongside 100+ other integrations, so you can chain Shopify, WooCommerce, WhatsApp, FedEx, DHL and more into the same workflow when you need them. Everything runs in one secure, GDPR-compliant environment with full run logs, retries on failure and OAuth-based access control.
Sign up for eGrow, authorise both Big Delivery and STM Express from the Integrations panel, then build a no-code workflow between them. The whole setup takes about 5 minutes.
Any data either app exposes via triggers and actions: status changed, customer records, orders, statuses and more. The full list is below.
It's included with every eGrow plan — connection costs nothing extra. You only pay your normal Big Delivery and STM Express plans on each side.
No. eGrow's automation builder is fully no-code. You select a trigger, pick an action, map the fields, and turn the flow on.
Yes. Once Big Delivery and STM Express are connected, you can chain any other eGrow integration into the same automation — Shopify, WooCommerce, WhatsApp, FedEx and 100+ more.
Real time. eGrow uses webhooks where Big Delivery and STM Express support them, otherwise polls every 1–5 minutes. Most workflows complete end-to-end in under 2 seconds, so changes in one app reach the other almost instantly.
Yes. Data flowing between Big Delivery and STM Express is encrypted in transit (TLS 1.2+) and at rest, each app is authorised using whichever method it officially supports (OAuth, API key, or signed webhook), and eGrow is GDPR-compliant with optional regional data residency. We sign DPAs on request.
eGrow retries failed API calls with exponential back-off, deduplicates retries, and surfaces the exact error from Big Delivery or STM Express in the run log so you can fix it. You'll get an email if a workflow keeps failing — no silent drops.
Yes — authorise as many Big Delivery and STM Express workspaces as you need and route each automation to the right pair. Useful for agencies, multi-brand operators, and dev/staging environments.
Sign up, authorise both apps, and turn on the workflow. Free white-glove setup with every plan.
