diff --git a/README.md b/README.md
index ae6b475..17a813a 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@ to the Banqup API of Unifiedpost.
 **Requirements**
 * Python installed on the machine running this application
 * Credentials for accessing an Openbravo 3+ instance running with the REST API enabled
+* The role in Openbravo used for the extraction/integration must have read access to 'Sales Invoices' and 'Product' via web services. 
 * Credentials for accessing the Banqup API by Unifiedpost
 * Add the businessPartner id to the 'Customer code' of the customer on the 'Customers & Suppliers' section of the Banqup portal - This is critical, this programs requires this field to extract some parameters that only exist in the Banqup platform
 
diff --git a/extract_invoice.py b/extract_invoice.py
index bcebdcb..1a42fe0 100644
--- a/extract_invoice.py
+++ b/extract_invoice.py
@@ -64,7 +64,10 @@ def extract_invoice(document):
 			if not first_line:
 				lines_output = lines_output+','
 			first_line = False
-			lines_output = lines_output + '{"service_name": "","service_description": "'+linetemp['product$_identifier']+'","service_quantity": '+str(linetemp['invoicedQuantity'])+',"service_price": '+str(linetemp['unitPrice'])+',"service_vat": '+gst_rate+'}'
+			url = ob_api_url+"Product?_where=id='"+linetemp['product']+"'&_noActiveFilter=false"
+			response = requests.request("GET", url, headers=headers, data=payload) #extracts product from master
+			product = json.loads(response.text)['response']['data'][0]['searchKey']
+			lines_output = lines_output + '{"service_name": "'+product+'","service_description": "'+linetemp['product$_identifier']+'","service_quantity": '+str(linetemp['invoicedQuantity'])+',"service_price": '+str(linetemp['unitPrice'])+',"service_vat": '+gst_rate+'}'
 	lines_output = lines_output+']'
 	#print(lines_output)