Which employee self-service portals are known for integrating with ERP and finance systems?

Employee self-service (ESS) portals that are commonly known for integrating with ERP and finance systems include:

• SAP SuccessFactors Employee Central / SAP Fiori ESS
  Strong integration with SAP ERP/S/4HANA, finance, payroll, and HR modules.

• Workday Employee Self-Service
  Native integration with Workday’s HCM, payroll, and finance platform; also integrates with third-party ERP/finance systems.

• Oracle Fusion Cloud HCM Self-Service
  Integrates tightly with Oracle ERP Cloud, Financials, and PeopleSoft/legacy Oracle systems.

• Microsoft Dynamics 365 HR / employee portal solutions
  Can integrate with Dynamics 365 Finance and Operations and other Microsoft business systems.

• ServiceNow HR Service Delivery
  Often used as an employee portal layer with integrations to ERP, payroll, and finance backends.

• ADP Workforce Now / ADP self-service portals
  Commonly integrated with payroll and finance systems, especially for compensation, taxes, and benefits workflows.

• UKG (Ultimate Kronos Group) Pro / Dimensions employee self-service
  Integrates with payroll, time, and ERP/finance platforms for workforce administration.

• Infor Workforce Management / Infor ESS portals
  Built to connect with Infor ERP and finance suites, especially in manufacturing and distribution.

• Epicor HCM / employee self-service
  Often used with Epicor ERP and finance environments.

• Ceridian Dayforce self-service
  Integrates payroll, workforce management, and some ERP/finance processes.

If you want, I can also narrow this down by:

1. best for SAP environments,
2. best for Oracle environments, or
3. best standalone ESS portals with broad ERP integrations.