Data out of sync
Customers, orders or payments that differ between systems because updates only flow one way — or not at all.
Custom API integrations
Connect applications directly when there is no connector, when the connector is too limited, or when the data is too important to trust to a fragile workaround — with authentication, validation, logging and retries designed in.
Overview
An integration is more than an API call. It needs secure authentication, a clear mapping between each system’s fields, validation before data is written, handling for rate limits and temporary outages, and a record of what happened so problems can be diagnosed.
We build integrations using the method that fits: an automation platform with custom HTTP steps, Google Apps Script, or small custom services. The emphasis is on predictable behavior — the same input always produces the same result, and failures are reported rather than silently dropped.
Signs you need this service
Problems we solve
Customers, orders or payments that differ between systems because updates only flow one way — or not at all.
Retries and repeated webhook deliveries that create the same record twice.
Integrations that fail on one bad record and stop, with no alert or log.
API keys pasted into spreadsheets or shared by email, and webhooks that accept any request.
Bulk syncs that hit API limits and quit halfway through.
Fields, IDs, statuses and formats that do not map one-to-one between systems.
What we build
OAuth 2.0 flows, API keys and tokens stored securely and refreshed automatically where supported.
Endpoints that verify signatures where offered, respond quickly and process events safely.
A documented field map with transformations for formats, units, statuses and IDs.
Required fields, types and business rules checked before anything is written.
Protection against duplicates, exponential backoff for rate limits and temporary errors.
A record of each sync, clear error messages and alerts when attention is needed.
Sample workflow
This example shows the structure of a payment integration — the kind of flow used to move point-of-sale or online payments into accounting records and a management report.
An idempotency check on the payment ID ensures that a repeated webhook delivery never creates a second entry.
This is a hypothetical example built to explain the approach. It is not a description of a specific client project.
Payment webhook → validate → accounting → report
Platforms & tools
If an application has a documented API or can send webhooks, it can usually be integrated. We confirm API access, plan limits and authentication requirements during discovery.
Implementation process
We review the current process, the applications involved and the outcome you need, and ask for examples of real (or anonymized) records.
You receive a short plan: trigger, steps, data fields, error handling, what is included and what is out of scope.
We build against sandbox or test accounts where available, with credentials stored in a secure configuration rather than in code or spreadsheets.
Normal, edge and failure cases are tested — missing fields, duplicates, bad formats and authentication problems.
The workflow is switched on with you, checked against live activity and monitored during the first days.
You receive notes on how it works, where logs live, how to pause it and what to check if something changes.
Practical considerations
Troubleshooting
Integration failures leave evidence. We look at:
FAQ
No. We use API keys, OAuth authorization or user invitations with appropriate permissions, shared through a secure method — never plain chat or email.
Depending on the design: inside an automation platform you own, in Google Apps Script, or on a small server or cloud function. We explain hosting and costs before building.
If it exposes an API, a database connection or can send webhooks, usually yes. If not, we discuss alternatives such as scheduled file exchange.
By matching on stable identifiers, storing processed event IDs and using “find or create” logic, so repeated events do not create repeated records.
Logging and alerts make the failure visible quickly. Maintenance can be arranged to update the integration when providers change their APIs.
Guides
Why records go missing, duplicate, or go stale between your CRM and other apps, how to trace the cause, and how to reconcile data after the fix.
Read the guideTell us which applications are involved, what data should move and how often.
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