CALL apoc.periodic.iterate( 'MATCH (lp:LabelParticipant) RETURN lp', 'SET lp.touchedByBackfill=datetime()', {batchSize:1000,iterateList:true,parallel:true,concurrency:5} ) YIELD total, failedOperations, errorMessages CALL apoc.util.validate(failedOperations > 0, "At least one sub-operation failed: %s", [reduce(all_errors = "", error IN keys(errorMessages) | all_errors + ", " + error)]) RETURN total;