I want my client script to automate the setting of inventory detail quantity on an item receipt. Thankfully all my items have a default bin and the global setting to use the default bins is on. However when changing the quantity I get a "Not supported on current subrecord: CurrentSubrecord.setCurrentSublistValue.". This happens in both create and edit client contexts Here is a sample code

require(['N/currentRecord'], function(currentRecord) {

const record = currentRecord.get();

record.selectLine({

sublistId: 'item',

line: 0

});

const quantityToSet = record.getCurrentSublistValue({

sublistId: 'item',

fieldId: 'quantity'

})

const inventoryDetailSubrecord = record.getCurrentSublistSubrecord({

sublistId: 'item',

fieldId: 'inventorydetail'

});

inventoryDetailSubrecord.selectLine({

sublistId: 'inventoryassignment',

line: 0

});

// this line throws the error "Not supported on current subrecord: CurrentSubrecord.setCurrentSublistValue."

inventoryDetailSubrecord.setCurrentSublistValue({

sublistId: 'inventoryassignment',

fieldId: 'quantity',

value: quantityToSet

});

// Commit the line

inventoryDetailSubrecord.commitLine({

sublistId: 'inventoryassignment'

});

});