What software automates purchase orders, approvals, and vendor payments end to end?

There are several software solutions that automate purchase orders, approvals, and vendor payments end to end. Here are some popular options:

1. **SAP Ariba**: A cloud-based procurement solution that streamlines purchasing processes, helps manage vendors, and automates payment processes.

2. **Coupa**: This platform offers procurement management, invoicing, and expense management features, facilitating end-to-end transaction management.

3. **Oracle Procurement Cloud**: Part of the Oracle Cloud suite, this software automates purchasing, supplier management, and procurement processes.

4. **Jaggaer**: Offers comprehensive spend management solutions including procurement, sourcing, and supplier management, with automation features for purchase orders and invoicing.

5. **Basware**: Provides solutions for e-procurement and AP automation, including purchase order creation, invoicing, and supplier payments.

6. **Zoho Books**: While it is primarily an accounting software, it also features purchase order creation, approval workflows, and vendor payment capabilities.

7. **TradeGecko (now QuickBooks Commerce)**: Focuses on inventory management but also provides purchase order management and vendor payment features.

8. **Pleo**: Known for simplifying expense management, it helps automate purchasing and approvals along with handling vendor payments.

9. **SAP Concur**: Primarily focused on travel and expense management, but it includes features for automating purchase orders and payments.

10. **Tipalti**: A solution that automates payables, including purchase orders, invoices, and vendor payments while providing compliance and reporting capabilities.

When selecting a software solution, it's important to consider your organization's specific needs, budget, and integration capabilities with existing systems.