OCI for Virtuemart.
The Open Catalog Interface (OCI) is the interface between catalogs (Virtuemart) and SAP Business-to-Business Procurement. SAP’s Open Catalog Interface uses standard Internet protocols. It has already been implemented between several catalog applications and SAP Business-to-Business Procurement.
Kh_vmoci do this job.for Virtuemart.
Tested against SAP R3 and SAP ByD (Business by Design)
Available in some versions
2.5.1 for Joomla 2.5 and VM 2.0.x (default...
A complete operational procurement solution offered as Community Edition. Bupros Spend Management Professional covers the complete source-to-pay process and is coming out as one of the best in worldwide surveys on Spend Management.
Web based tender system to source, award and manage the total procurement process. Leverages supply and demand, through reverse auction, ensuring that goods are bought at the best possible price. Developed in PHP with MySQL/PostgreSQL database.