Failed Event Flow
This flow describes the process to inform that an operation requested by a webhook event could not be performed successfully by the partner application. The event id must be used to call POST /v1/callback/error.

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Public API sends any webhook event requesting to perform an operation within an integrated service (menu publish, upsert hours, update menu entities availability, send menu).
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Partner application fails to perform the requested operation within the integrated service.
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Partner application informs the failure and the cause using POST /v1/callback/error. The error message provided in this endpoint will be displayed to the user, so ideally it should be friendly.