Line items not commiting

Hi NetSuite Users,

I have a problem when using the nlapiCommitLineItem API. I am searching line items, including description item, from a sales order and adding them into a drop ship purchase order using a client event script. This have been working fine in a demo account, but when using it within our customers account the line items will not commit.

function setNonDescriptionItem()  {   try    {    nlapiSetCurrentLineItemValue('item', 'item', name);    nlapiSetCurrentLineItemValue('item', 'quantity', quantity);    nlapiSetCurrentLineItemValue('item', 'description', description);        nlapiCommitLineItem('item');    nlapiSelectNewLineItem('item');       }   catch(e)   {    nlapiLogExecution('Error', 'setNonDescriptionItem', e.message);   }  }    /**   *    * Sets and commits a description line item without a quantity.   *    */  function setDescriptionItem()  {   try    {    nlapiSetCurrentLineItemValue('item', 'item', name);    nlapiSetCurrentLineItemValue('item', 'description', description);    nlapiCommitLineItem('item');    nlapiSelectNewLineItem('item');   }   catch(e)   {    nlapiLogExecution('Error', 'setDescriptionItem', e.message);   }  }