Everything You Wanted to Know About the Blackbox Connector for HRIS + Deltek (But Were Afraid to Ask)

Connecting your HR system to Deltek Vantagepoint isn't about automation as a concept. It's about stopping the duplicate entry, preventing the slow data drift you don't notice until it's a problem, and eliminating the quiet reconciliation work that eats an hour here and two hours there every payroll cycle.
When firms start looking at integrating ADP, Paylocity, BambooHR, or UKG with Deltek, the questions are usually pretty practical: What's actually supported? What's real-time? What breaks? What happens when something fails? And how much of what vendors say is engineering versus marketing?
We had many great questions from firms during our webinar on the topic, How to Successfully Integrate Your HCM and HRIS Systems with Deltek. We’ve gathered those, along with additional common questions we receive, to create a resource where we have the opportunity to help you better understand how the Blackbox Connector can simplify your world.
So, here are your answers.
What We Support Today
These platforms are running in active production environments right now: ADP, Paylocity, BambooHR, and UKG Pro (via Reports-as-a-Service / RaaS).
When we say "supported," we don't mean we've read the documentation. We mean authentication has been validated, the relevant endpoints are known, data models have been mapped, multi-company logic has been handled, and batch behavior has been tested under real failure conditions — not hypothetical ones. We've seen what breaks. We've already built around it.
What Can Be Built (But Needs Scope First)
Paycom and UKG Direct API (non-RaaS) are technically viable but we’ve not had the opportunity to work with a client yet to build connectivity to these solutions.
For these, we follow the same process we use for any custom connector: review the API documentation, confirm authentication methods and required scopes, identify the data objects that actually matter (employees, orgs, PTO, deductions, direct deposit), work out the transformation requirements inside Deltek, and then build and test deliberately. High-level review first. Endpoint validation next. Proof-of-concept only after viability is confirmed.
If the API holds up, we build it. If it doesn't, we find out before anyone wastes money.
A Note on UKG Specifically
UKG RaaS and UKG Direct API are not the same thing, and we won't lump them together on a bullet list just to make a slide look cleaner.
RaaS is report-driven — structured, predictable, and stable. It works well for employee and payroll synchronization. Direct API opens more flexibility, but it requires deeper endpoint validation, a closer look at authentication, and sometimes more back-and-forth with UKG's own support teams. The technical lift is meaningfully different and want our clients to know that upfront.
"Real-Time" Isn't Always What It Sounds Like
Take Paylocity webhooks as an example. Webhooks are often incomplete — they tell you something changed, but they don't always include every changed field in the payload.
So rather than trusting the webhook blindly, we treat it as a trigger. It fires, we pull the full authoritative employee record via API, validate and transform it, and push only what actually needs updating to Deltek. That approach prevents the subtle drift that tends to show up in fields like supervisor assignments, org changes, or status updates — the stuff that quietly causes problems downstream.
You can also run scheduled syncs or trigger a full on-demand sync inside Deltek whenever something needs correction. That combination of scheduled automation and manual override is intentional. When payroll calls with a discrepancy, you shouldn't have to wait until midnight.
PTO: Where It Lives vs. Where It's Needed
In most firms, PTO accrues in the HRIS but resource planning and approvals happen in Deltek. If those two systems aren't aligned, someone is manually reconciling balances — probably more often than they'd like to admit.
A properly designed connector pulls PTO balances from the HRIS and reflects them in Deltek so planning and approvals are always working off current numbers. The goal isn't to duplicate data. It's to make ownership clear and visibility consistent.
Bidirectional Sync: When It Makes Sense
Integration doesn't have to move in one direction. Some firms need Deltek's employee numbers or company assignments pushed back into the HRIS to stay aligned across multi-company environments.
The question isn't really "can it go both ways?" Most things can. The real question is who owns each field. Once that's defined, direction is just a technical detail.
Employee Transfers Between Companies
When someone moves from one company to another, most firms don't want to terminate them, rehire them, and rebuild their history. That creates artificial breaks in reporting and headaches that show up months later.
A well-built integration respects Deltek's architecture — creating new EMCompany records via API and preserving continuity without manufactured disruptions. This is exactly where sloppy integrations create long-term accounting pain.
What Happens When Batches Fail?
Most vendors skip this part entirely.
Integrations post and update in batches. When a batch fails, every record in that batch stays queued for retry. That's not a workaround — that's the design. Future runs re-attempt those records until they process successfully. The goal is zero silent data loss.
If you're evaluating integration vendors, ask them directly how they handle partial failures. The answer will tell you quickly whether you're looking at a durable system or a polished demo.
When the API Isn't Clean
APIs are ideal. Not every system cooperates.
When necessary, we support secure file-based transfers via SFTP and staged processing. The pattern stays the same regardless: fetch, stage, validate, transform, commit in controlled batches, retry when needed. Boring is good. Predictable is better.
The Part That Actually Matters
A successful HRIS-to-Deltek integration isn't defined by which logos appear on a capabilities slide. It's defined by whether failed batches retry cleanly, whether data ownership is actually defined, whether multi-company logic is handled properly, whether you have an on-demand option when something needs correction, and whether security — especially around payroll and banking data — is treated seriously.
Get those things right and integration becomes operational infrastructure. Get them wrong and you feel it every single payroll cycle.
Let’s Get Your Systems Talking
Whether you’re using Paylocity, ADP, Paycom, or another HRIS platform, the Blackbox Connector for Deltek Vantagepoint is the fastest, most secure way to unify your HR and ERP data.
👉 Want to explore what’s possible for your firm? Contact our team at Info@Blackboxconnector.com









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