We need to establish what differences exist, if any, between V2_soap API in Magento 1.9 and Magento 1.7
You may check at following link the release notes for the Magento 1.9 series
There were some changes as following in the Magento 1.9.2 version
Mage_Sales_Model_Orderno longer returns errors.
salesOrderInvoiceCreateno longer changes the value of
$itemsQtyin subsequent orders.
/api/v2_soap?wsdl) no longer appears the Admin, which is unreachable by SOAP.
What is your real concerns regarding the differences?
Thanks for this reply. Are those differences you have defined the entire extent of differences between 1.9 and 1.7?
We have developed and tested integration with our accounting and order processing application and Mag CE 188.8.131.52. We have a customer who wishes to use it with Mag 184.108.40.206 and we need to identify any differences.