Item fulfillment request not created properly at netsuite using phptoolkit library
[message] => You must have at least one valid line item for this transaction.
[type] => ERROR
- That line (item) doesn´t exists in the SO
- That item doesn´t have available quantity (all backordered)
- That line is closed
- Wrong internalid for the item
- Wrong location for the item
- Item belongs to a different subsidiary
- The Order is already having a conflicting ItemFulfillment record of it in NetSuite
Most common is that there is no quantity on hand/available for that particular item which you are trying to fulfill. You may need to check the list above to narrow down the specific cause.
Hope this helps.