SSS_INVALID_SUBLIST_OPERATION CurrentRecord.selectLine; ID: var currLineIndex = currRec.getCurrentSublistIndex({ sublistId: 'item' }); currRec.selectLine({ sublistId: 'item', line: Number(currLineIndex) + 1 , ignoreRecalc: true}); currRec.setCurrentSublistValue({ sublistId: 'item', fieldId: 'item', value: itemId }); currRec.setCurrentSublistValue({ sublistId: 'item', fieldId: 'quantity', value: calcPromo }); currRec.setCurrentSublistValue({ sublistId: 'item', fieldId: 'amount', value: 0 }); currRec.setCurrentSublistValue({ sublistId: 'item', fieldId: 'taxcode', value: 11 }); currRec.commitLine({ sublistId: 'item' });

AI generated answer (using internal Slack threads):

The error

SSS_INVALID_SUBLIST_OPERATION

typically occurs when you're trying to perform an operation on a sublist line that doesn't exist or is not currently selected. In your case, you're trying to select a line that may not exist. The

selectLine

method selects a line in a sublist. The line number is zero-based, so the first line is line 0, the second line is line 1, and so on. If you try to select a line that doesn't exist (for example, if there are only 3 lines and you try to select line 4), you'll get the

SSS_INVALID_SUBLIST_OPERATION

error. In your code, you're trying to select the line at

currLineIndex + 1

. If

currLineIndex

is the index of the last line in the sublist, then

currLineIndex + 1

doesn't exist, which is why you're getting the error. Here's a corrected version of your code:

javascript
var currLineIndex = currRec.getCurrentSublistIndex({
    sublistId: 'item'
});

if (currLineIndex < currRec.getLineCount({sublistId: 'item'}) - 1) {
    currRec.selectLine({ sublistId: 'item', line: Number(currLineIndex) + 1 , ignoreRecalc: true});

    currRec.setCurrentSublistValue({ sublistId: 'item', fieldId: 'item', value: itemId });
    currRec.setCurrentSublistValue({ sublistId: 'item', fieldId: 'quantity', value: calcPromo });
    currRec.setCurrentSublistValue({ sublistId: 'item', fieldId: 'amount', value: 0 });
    currRec.setCurrentSublistValue({ sublistId: 'item', fieldId: 'taxcode', value: 11 });

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

This code first checks if

currLineIndex + 1

is a valid line number before trying to select it. ****** Disclaimer: This response was generated by an artificial intelligence assistant based on previous conversations from multiple Slack channels, and may contain inaccuracies or mistakes. ******