//Must keep productId in SKU NUMBER because ebay allow productId field only long value.
sellingManagerProductDetailsType.setCustomLabel(productId);
if (ebayProductStoreInventory!=null) sellingManagerProductDetailsType.setQuantityAvailable(ebayProductStoreInventory.getBigDecimal("availableToPromiseListing").intValue());
productReq.setSellingManagerProductDetails(sellingManagerProductDetailsType);
productResp = (AddSellingManagerProductResponseType) productCall.execute(productReq);
if (productResp != null && "SUCCESS".equals(productResp.getAck().toString())) {
flag = true;
ebayProductStoreInventory.put("ebayProductId", productResp.getSellingManagerProductDetails().getProductID());
ebayProductStoreInventory.put("folderId", folderId);
ebayProductStoreInventory.store();