Errors and Business Rules

Errors use problem-details JSON with:

• type
• title
• status
• detail
• optional errors

Common statuses:

Status	Meaning
401	Missing or invalid bearer token
403	Credential does not have the required scope
404	Referenced client-owned site, project, item, or resource was not found
409	Duplicate resource or optimistic concurrency conflict
422	Request validation failed

Important business rules:

• siteCode must be unique per client.
• clientTicketNumber should be unique per client.
• projectId must belong to the client and be active.
• itemName must belong to the client.