Hi all! Does anyone know if it’s possible to create a custom record with custom record child instances via REST api in one single request? This body creates only the parent custom record: { “custrecord_sta_bike_status”: 1, “custrecord_sta_enduser”: 1, “custrecord_sta_size”: “100", “customrecord_sta_child” : { /_/ have also tried the name of the sublist starting with recmachcustrecord…_ “items” : [ { “custrecord_sta_bl_is_header”: true } ] } }