Here are the answers to your questions:
1. Is anyone aware of any issues regarding pushing/pulling data to/from Ariba where my SAP system is ECC6 non-uniocde?
Answer: We support ECC6. If you have non-unicode system, all the transports should work fine.
2. I would also like to know how many times the toolkit needs to be installed as my SAP landscape is sandbox, dev, qa, prod.
Can I use one toolkit and change to point to a different ERP backend?
Or does it need to be installed for each environment (note I am using SAP rfc not JDBC).
Answer: If you want to connnect to anyone instance at a given time, one installation of th integration tool kit is sufficient. You could change the configuration file to point to the correct instance. Note that for SAP integration, you need just the data transfer tool which is part of integration tool kit and you don't need the DB Connector.
Please let us know if this is helpful or if you need further clarifications.
Solutions Manager, Procure-to-Pay, Ariba.
Looks like this questions is answered, but please don't be shy if you don't have everything you need.
I am also working on Ariba Integration with SAP PI. Where i need to post Spend Analytic data which are in .CSV files format need to post into ARIBA. How can i Achieve my requirement with PI?
this can be easly done using PI File Adapter if ARIBA Team Share the FTP details(File Directory, User Credentials ..etc) . Will Ariba provide this?
Thanks & Regards,