Design integrations that are easy to recover when something fails
By Scallop Studio
The happy path is only part of an integration. A form may submit while the CRM is unavailable, an email address may already exist or a required value may be missing. Thinking through these cases before launch makes the system easier to operate.
Define a complete transaction
Write down the expected sequence in business terms: receive the request, save the context, assign responsibility and confirm the next step. Identify what counts as success.
Avoid declaring completion just because the first tool accepted a request. The useful outcome is the record or task the team needs at the end of the process.
Choose how to handle repetition
Consider what happens when someone retries a form or the integration repeats an attempt. Decide how the same request is recognised and which information should be updated.
Keep a distinction between a customer record and each new enquiry. Combining every message into one overwritten field can remove context the team needs later.
Make failures actionable
A failure notice should identify the affected step and how a responsible person can recover it. Do not send a vague alert to everyone without defining who takes ownership.
Limit the information included in alerts to what the team needs. Detailed customer content belongs in the appropriate system rather than being copied into every notification.
Practise recovery before launch
Use labelled test requests to exercise missing fields, duplicate attempts and an unavailable destination in a suitable test setup. Verify that the manual fallback works.
Give the team a short recovery guide and review failures after launch. A system that admits and recovers from errors is easier to trust than one that only demonstrates a perfect example.
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