Update Custom Metricpatch https://a.klaviyo.com/api/custom-metrics/{id}Update a custom metric with the given custom metric ID.Rate limits:Burst: 1/sSteady: 15/mDaily: 15/d Scopes: metrics:writePath ParamsidstringrequiredThe ID of the custom metricQuery Paramsfields[custom-metric]array of stringsFor more information please visit https://developers.klaviyo.com/en/v2026-04-15/reference/api-overview#sparse-fieldsetsfields[custom-metric]ADD stringBody ParamsUpdate a custom metric by ID.dataobjectrequireddata objectHeadersrevisionstringrequiredDefaults to 2026-04-15API endpoint revision (format: YYYY-MM-DD[.suffix])Responses 200Success 4XXClient Error 5XXServer ErrorUpdated about 1 year ago