Hi Everyone, I am trying to insert a line item at the customer record where the sublist is named 'Content' below is the screenshot: The sublist is created by the script User event' BeforeLoad event which is locked by the bundle, so when I am creating the custom record by using suitelet script I am unable to insert the item line in the sublist I am getting error as below:

{
   type: "error.SuiteScriptError",
   name: "USER_ERROR",
   message: "Items you have requested in the record have been deleted since you retrieved the form",
   stack: [
      "Error\n    at RecordInvoker.save (suitescript/resources/javascript/record/serverRecordService.js:371:13)\n    at NetSuiteObject.thenableFunction() (suitescript/resources/javascript/record/proxy.js:115:24)\n    at Object.afterSubmit (/SuiteScripts/GBS_UE_ValidateSkidRecord.js:158:32)"
   ],
   cause: {
      type: "internal error",
      code: "USER_ERROR",
      details: "Items you have requested in the record have been deleted since you retrieved the form",
      userEvent: null,
      stackTrace: [
         "Error\n    at RecordInvoker.save (suitescript/resources/javascript/record/serverRecordService.js:371:13)\n    at NetSuiteObject.thenableFunction() (suitescript/resources/javascript/record/proxy.js:115:24)\n    at Object.afterSubmit (/SuiteScripts/GBS_UE_ValidateSkidRecord.js:158:32)"
      ],
      notifyOff: false
   },
   id: "",
   notifyOff: false,
   userFacing: true
}

All I want to insert the item line into the script does anybody has any idea that why is this error can be solved??

your description suggests you are doing something that is doomed for failure

@battk In the User event before load, the flow is Load Items from saved search-> Add that item in the sublist->Commit line

sounds like how sublists work in beforeLoad

So is there any way or it is not possible?

essentially you would need to understand how the beforeLoad chooses what to display