Connectors

Advanced tax software connectors for Vertex, Avalara, & beyond

KMMH Systems provides a wide range of custom integration to meet your needs.

Every project comes with a can-do attitude to your highest level of satisfaction.

Custom Integrations and Tax Software Connectors

 In-house design and development by subject matter experts who understand tax.

Robust cost-saving solutions enable companies to implement advanced tax engines independently of ERP upgrades.

Q2O Upgrade Connector for Vertex

Direct path to Vertex O Series and Vertex Cloud. *Seamlessly integrate ERP systems using Vertex Q Series API, such as JDE, QAD, or QuipWare, with advanced tax engines.


Q2O enables the latest tax automation technology and tax function centralization with older host systems - upgrade your tax software without replacing or modifying your existing ERP system.

Q2O Info Sheet
Q2O integration for Vertex O Series and Vertex Cloud

L2O Upgrade Connector for Vertex

Direct path to Vertex O Series and Vertex Cloud. Seamlessly integrate ERP systems using Vertex L Series API, such as JDE World, and custom RPG-based systems with advanced tax engines.


L2O enables the latest tax automation technology and tax function centralization with older host systems - at a fraction of an ERP replacement cost.

L2O Info Sheet
L2O integration for Vertex O Series and Vertex Cloud

CC2O for Avalara

Avalara CertCapture integration for Vertex tax engines and customer master databases.


CC2O informs the Vertex tax engine and ERP of the exempt status maintained in CertCapture. You choose the tools that work best for you; we integrate them.

Integration for Avalara CertCapture

D365VI for Vertex

Vertex O Series Sales Tax, Use Tax, and VAT integration for Microsoft D365. Customizable to meet the unique needs of your business and your locations.


Beyond the essential sales and use tax calculation, D365VI facilitates compliance with various jurisdiction-specific accounting and withholding rules across VAT countries. We know VAT.

Integration between Microsoft D365 and Vertex O Series or Vertex Cloud
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