Update custom fields

Updates sale custom fields for the specified sale. Returns 422 if subscriber custom fields are not enabled, if isConcierge is not Yes/No, or if serviceType is not one of the allowed values.

Validation & Requirements

Required Parameters

• saleGuid (path, string, format=guid)
• form (body, object)

Required JSON Body Fields

• None

Validations

• Invalid GUID values in *Guid/*Guids fields return 422 Unprocessable Entity.
• Invalid date values in *date* fields return 422 Unprocessable Entity.
• Missing required request body returns 422 Unprocessable Entity with Missing request body..
• Additional business-rule validation may return 422 with details in the errors array.

Integration Requirement

• Retrieve the corresponding ...Form endpoint immediately before write operations to get current dynamic required fields and allowed values.