Dev Tools · 9h ago
Schema validation passes but n8n workflow updates wrong customer
A workflow can complete successfully and pass JSON schema validation yet still update the wrong customer due to incorrect data mapping. The issue arises when a valid identifier from the wrong source path is used, such as selecting the webhook actor ID instead of the customer ID. Developers are advised to use collision fixtures with distinct values to catch such semantic errors.
Meridian48 take
The piece highlights a subtle but dangerous class of bugs that schema validation alone cannot catch, underscoring the need for domain-aware testing in automation workflows.
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Your n8n Workflow Passed Schema Validation—and Updated the Wrong Customer →
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n8ndata-mapping