Common Mapping Rules

Since most of the NetSuite fields are dependent on the NetSuite itemType field, a useful displayrule to ensure that the value for any mapping for the corresponding item type is not empty is the following (replace "itemType" in the code below with your accessor name for the item type mapping):

const itemTypeValue =
  "itemType" in rowData.modifications
    ? rowData.modifications.itemType
    : rowData.cells.itemType;
if (itemTypeValue === pm.secondaryAccessor.split(".")[0] && s === "") {
  return { message: "Value must not be empty" };
}