What Azure Logic Apps does that custom code doesn't need to
Logic Apps is Azure's integration platform-as-a-service. It provides a visual designer for building workflows — called Logic Apps — that connect to external systems, transform data, apply conditional logic, handle errors, and retry failed steps automatically. The platform includes 400+ managed connectors covering Microsoft products (Dynamics 365, SharePoint, Teams, Azure services), common SaaS applications (Salesforce, Zendesk, HubSpot, ServiceNow), databases, APIs, and enterprise systems including SAP. Connectors handle authentication, connection management, and API versioning — the developer configures what to do with the data, not how to talk to the system.
For enterprise integration scenarios — syncing records between systems, routing documents, triggering downstream processes on events — Logic Apps replaces weeks of custom API integration work with configuration. Each step in a Logic App can transform data using built-in functions or Azure Functions for complex transformations. Error handling, retry policies, and dead-letter queues are configured rather than coded. The infrastructure scales automatically and is billed per run, so there is no idle capacity cost.
A CRM-to-ERP sync built in a week
A practical implementation starts with the trigger — in this case, a Dynamics 365 opportunity moving to "closed-won." The Logic App triggers on that event, reads the opportunity record, maps the relevant fields (account name, value, delivery requirements, contact details) to the ERP's expected format, creates the job or order record in the ERP using the ERP's connector or REST API, and writes a confirmation record back to the CRM with the new ERP reference number. Field mapping is configured visually with the data mapper; data type conversions and string transformations use built-in expression functions. A typical first integration — trigger, map, write, log — takes 3–5 days to build, test, and sign off including edge-case handling.
The second week is usually spent on the second direction: events in the ERP (job delivered, invoice raised) triggering updates in the CRM. Conflict resolution rules — which system wins when the same field is updated in both within a short window — are handled with conditional logic and timestamps. A weekly exception review job, also a Logic App, collects records that couldn't be automatically resolved and writes them to a SharePoint list for human review.
What reliable integration changes in day-to-day operations
When systems are in sync, the manual work that existed to bridge the gap disappears. The daily reconciliation meeting where two teams compared what their systems showed becomes unnecessary because both systems show the same data. Sales can see delivery status without asking operations. Operations can see pipeline changes without waiting for a weekly update. The cognitive overhead of maintaining a mental model of "what the CRM says vs what the ERP says" — and the errors it produced — is eliminated.
Logic Apps run history provides a full audit trail of every integration event: what triggered it, what data was processed, what the outcome was, and any errors that occurred. If a step fails, the retry policy handles transient failures automatically. Persistent failures appear in the run history with the exact error, pointing directly to the root cause. Monitoring can be connected to Azure Monitor alerts that notify the team if error rates rise above a threshold — integration problems are visible before they affect operations.