ONESOURCE Certificate Manager vs Zamp

ONESOURCE Certificate Manager automates the collection, validation, storage and renewal of sales tax exemption certificates. It checks certificates against state-specific rules and tracks expiration dates. Customers can submit certificates through a self-service portal; tax teams can use reminders, customizable email templates and audit-ready reports to produce documentation on demand. Integration with ONESOURCE Determination links exemption documentation to tax calculation. Described use cases include manufacturing and distribution, government, education, nonprofits, retail and sellers operating across multiple jurisdictions. Deployment uses an application server or web container, with downloads from the ONESOURCE Customer Center. The installation guide requires Determination 5.6.2.4 or higher. Customers planning bulk uploads of customer and certificate data should also download Data File Integrator. In-application Help is available after installation and configuration, and documentation is available through the Knowledge Base. The listed platforms are API, self-hosted, web and Windows. Pricing is on request, and there is no free plan; a free demo can be requested.

Zamp has no write-up on Specifiction yet; its figures are above.