Custom ADP Connector: How to Connect Any HR App to ADP

With data integration, new hires and employee updates move from your ATS or core HRIS into ADP, employee updates travel back out of ADP when you prefer to maintain them there, payroll journal entries reach your general ledger after each run, and time and attendance data syncs into ADP. Flexspring builds the integration to match your custom fields and business rules, then hosts and monitors it.

You decide which information you want to sync, and a data integration expert like Flexspring maps every field between the two systems and builds the connection. Custom integrations by Flexspring include unlimited custom fields and unlimited business rules. There is nothing for your team to install or maintain. The connection runs over a near real-time API-to-API connection rather than a scheduled file transfer. Flexspring is one of the leading sellers of custom connectors for ADP.

With data integration, new hires sync from your ATS into ADP with the essential information needed to process payroll, and employee updates follow from your ATS or core HRIS. Employee updates travel back from ADP into your ATS or core HRIS when you prefer to maintain them in ADP, payroll journal entries reach your general ledger summarized per account, location, and subsidiary, and time and attendance data syncs into ADP. You can also add one-time payments, banking and tax, expense management, learning management, equity systems, background checks, and assessments.

Flexspring builds, hosts, and monitors the connector. A custom connector with ADP goes live in 9-12 weeks. The journal entry use case comes in two forms — a connector for a single subsidiary, and a connector for payrolls mapped to multiple subsidiaries. Custom integration by Flexspring includes unlimited custom fields and unlimited business rules. Flexspring does all the data mapping, so no internal IT resources are needed.

Flexspring does not store employee data beyond temporary transaction logs, and does not require anyone to handle the data manually. Flexspring meets SOC 2, GDPR and ISO 27001 standards.

No internal IT resources are needed to create your data integration. Flexspring’s team builds the integration to your requirements and monitors it afterwards, including handling API changes from either vendor. Your part is deciding which use cases you need and confirming Flexspring’s recommendations for how your fields should map.

With data integration, the employee data your team keys into one system reaches ADP on its own, so payroll runs on current information and nobody retypes a new hire. Your team gets fewer payroll corrections, faster onboarding, and an end to double-data entry between HR and payroll.

The best way to connect your HR app to ADP depends on your data and business requirements. A standard connector can work for simple data flows, while custom fields and unique business rules require a tailored integration. If you go the custom route, you can build the integration yourself or choose a managed integration like Flexspring’s — built and maintained for you, which is typically faster and cheaper.