Experimental Create or update settings. ## Import behavior: - Label: - If a label-group with the same name exists, the label-group is updated. - Labels are merged. - If a label with the same name exists, it is overwritten. - If no label-group with the same name exists, a new label-group is created. - Custom Fields: - If a custom field with the same name exists, the custom field is updated and its choices are merged. - If no custom field with the same name exists, a new custom field will be created. - Workflows: - If the query param overwrite_workflows=true the existing workflows are overwritten. Otherwise, a new workflow will be created where the prefix `Copy of` is added to the name of the workflow. - Webhooks: - If a webhook with the same name exists, the webhook is updated and its events are merged. - If multiple webhooks with the same name exist, a new webhook is created. - If no webhook with the same name exists, a new webhook is created. - Apps: - If an app with the same name exists, the app is updated and its authorization callback URLs are merged. - If multiple apps with the same name exist, a new app is created. - If no app with the same name exists, a new app is created. - Templates: - If a template with the same name exists, the template is updated. - If multiple templates with the same name exist, a new template is created. - If no template with the same name exists, a new template is created. - Routing Rules: - If one single routing rule with the same name exists, the routing rule is updated. - If multiple routing rules with the same name exist, a new routing rule is created. - If no routing rule with the same name exists, a new routing rule is created.

200Successful response.

404Error response when no content type found by content_type_id and instance_id