I am trying to create and item receipt from a transfer. I am trying to select an inventory detail -> inventory assignment line. I am get the inventory assignment line count of 2. When I try to select the line it is giving me an error: "You have attempted an invalid sublist or line item operation. You are either trying to access a field on a non-existent line or you are trying to add or remove lines from a static sublist." But I am able to do this operation on every other line item on this transfer. What is going on? Does the index of the inventory assignment always start at 0? If it does not, how do I get the actual line id/index?

AI generated answer (using internal Slack threads):

The error message you're seeing, "You have attempted an invalid sublist or line item operation. You are either trying to access a field on a non-existent line or you are trying to add or remove lines from a static sublist," is typically thrown when you're trying to access a sublist line that doesn't exist or when you're trying to manipulate a static sublist. In SuiteScript, the index of sublist lines starts at 0. So, if you're getting a line count of 2, the valid indexes to access those lines would be 0 and 1. If you're trying to access a line using an index of 2 or higher, you would get this error because those lines don't exist. Also, when working with sublists in dynamic mode, you need to use the

selectLine

method before you can work with the fields on that line. If you're trying to use

setCurrentSublistValue

or

getCurrentSublistValue

without first selecting the line, you would get this error. Here's an example of how you can work with sublist lines in dynamic mode:

javascript
var lineCount = record.getLineCount({
    sublistId: 'item'
});

for (var i = 0; i < lineCount; i++) {
    record.selectLine({
        sublistId: 'item',
        line: i
    });

    var quantity = record.getCurrentSublistValue({
        sublistId: 'item',
        fieldId: 'quantity'
    });

    // Do something with the quantity...

    record.commitLine({
        sublistId: 'item'
    });
}

In this example, we're first getting the line count of the 'item' sublist. Then, for each line, we're selecting the line, getting the value of the 'quantity' field, doing something with that value, and then committing the line. If you're still having issues, please provide more details about your code and the specific operation you're trying to perform. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******