When someone joins, moves or leaves in ADP iHCM, you want that change reflected in your on-premise Active Directory without anyone touching it by hand. To connect ADP iHCM to Active Directory, Joinly reads each HR change through the ADP Worker Management API and applies it to your domain through the Joinly AD Agent — a lightweight connector that runs inside your network. iHCM stays your source of truth; Joinly is the engine that keeps every account in the right OU, accurate and traceable, even across the multiple European countries a single iHCM tenant covers.
Key takeaways
ADP iHCM stays your source of truth; Joinly applies every joiner, mover and leaver to on-premise Active Directory automatically.
The Joinly AD Agent runs inside your network and needs only an outbound HTTPS connection — no inbound ports and no domain controller exposed to the internet.
Joinly maps iHCM department and cost center to the right AD security groups and target OUs, and builds the sAMAccountName, UPN and distinguished name from your own rules — country-aware for a multi-country iHCM 2 tenant.
Reads the effective hire date and resolves workers with multiple work assignments, so accounts land in the correct OU on the start date and aren’t duplicated by a second assignment.
Every action is logged for a complete audit trail, aligned with NIS2 and ISO 27001 — and the same setup extends to a hybrid Entra ID environment.
Quick facts
Source system | ADP iHCM (iHCM 2) |
Target system | On-premise Active Directory (AD DS) |
Connection method | ADP Worker Management API (API Central) → Joinly AD Agent → Active Directory |
Agent requirement | Domain-joined Windows server with a GMSA, outbound HTTPS (443) only |
Supported events | Joiner, mover, leaver (incl. rehire, transfer, multiple work assignments, cross-country moves) |
Synced attributes | Name, sAMAccountName, UPN, mail, department, cost center, job title, manager, associate ID (associateOID), country, distinguished name / OU, hire and termination date |
Real-time or batch | Frequent sync, multiple times per day |
Compliance | ISO 27001, NIS2-ready, GDPR (EU data centre) |
How does Joinly sync ADP iHCM to Active Directory?
Joinly reads each HR change in iHCM in the cloud through the ADP Worker Management API, then hands the action to the Joinly AD Agent inside your network, which makes the change in Active Directory. iHCM holds the authoritative worker record; the agent is the only component that touches your domain.
Joiner. HR completes the hire in iHCM. Joinly reads the new worker, determines the role from department, cost center, job title and country, and instructs the AD Agent to create the user in the correct OU, build the sAMAccountName and UPN from your rules, and add the right security groups — timed to the effective hire date.
Mover. When a worker changes work assignment, department or cost center — including a move to another country org chart — Joinly tells the agent to move the user to the matching OU, swap security-group membership and update attributes. Access that no longer fits the new assignment is removed, so permissions stay aligned with the actual job.
Leaver. On the termination date, Joinly instructs the agent to disable the AD account and optionally move it to a disabled-users OU. Multiple work assignments are taken into account, so an account is only disabled when the worker’s last active assignment ends.
Example: A pharmaceutical company runs iHCM 2 across its Dutch and German sites and an on-premise AD for its lab and quality systems. It hires a QA analyst with a hire date next Monday in the Dutch org chart. Joinly reads the worker record, and on Monday morning the AD Agent creates the user in the NL-Quality OU, sets the sAMAccountName to a unique pattern, and adds the GxP-Quality group. When the analyst later picks up a second work assignment at the German site, the agent adds the German group to the same object instead of creating a duplicate.
What manual AD account management costs
Without automation, every account starts as an ADP report that an admin works through in Active Directory Users and Computers by hand — creating the object, choosing the OU, building the sAMAccountName, adding groups. ADP offers no native path to on-premise AD; the gallery app is SSO only, so you either script exports yourself or buy a third-party sync bridge, and either way the decisions still fall to people.
Onboarding delays. New joiners wait for an AD account and group access while a ticket sits in a queue, losing productive days in their first week.
Permissions that don’t keep up (privilege creep). When workers change assignment or country, old security-group membership often stays attached, so people accumulate rights they no longer need.
Forgotten offboarding. Accounts that aren’t disabled on time are a security and audit risk — and with multiple work assignments it is easy to disable an account while another assignment is still active.
Joinly vs. a sync bridge for AD
ADP has no native on-premise AD provisioning from iHCM, so the usual baseline is a third-party sync bridge that writes worker data to AD. Here’s how that compares to Joinly for an iHCM-driven AD setup.
Joinly AD Agent | Third-party ADP sync bridge | |
|---|---|---|
Source | Reads the ADP Worker Management API directly | Reads ADP separately via its own connector |
OU placement | Rule-based on department, cost center and country | Single configured container; limited logic |
Role-to-group mapping | Built in, rule-based | Not available out of the box; manual |
Multi-country tenant | Country-aware OU, naming and group rules | One flat mapping; per-country logic is manual |
Multiple work assignments | Resolves primary vs additional assignment | Assignment confusion can create duplicates |
sAMAccountName / UPN rules | Custom transformation with uniqueness fallback | Limited expression mapping |
Audit trail | Per-action logging tied to the HR source | Limited |
Watch-outs when connecting ADP iHCM to Active Directory
A few details decide whether this connection stays reliable at scale.
sAMAccountName uniqueness and length. AD limits the sAMAccountName to 20 characters and it must be unique across the domain. Joinly builds it from your rules with a fallback pattern, so duplicate names never produce a collision or a truncated, unreadable login.
OU placement across country org charts. iHCM’s departments and cost centers don’t map one-to-one to your OU structure, and a single iHCM 2 tenant can hold several country org charts. Joinly builds explicit rules that place each user — and move them on a transfer or cross-country change — into the correct OU.
Multiple work assignments. A worker can hold more than one active work assignment. Joinly keys on the associateOID so a second assignment adds groups to a single AD object rather than creating a duplicate account.
Certificate-based API onboarding. The link to ADP runs over mutual TLS with an X.509 certificate from the ADP partner self-service portal that expires. Joinly manages the certificate and flags rotation in advance, so the agent keeps receiving worker changes without an unexpected outage.
Service-account permissions. The agent acts under a service account with delegated rights. Joinly works with least-privilege delegation scoped to the target OUs, so the agent can create, move and disable users without domain-admin rights.
Joinly handles each of these by default with custom mapping and transformation.
Always audit-ready
Every account action the Joinly AD Agent performs is logged in the Joinly cloud: who was affected, when it happened, which OU and groups changed and which iHCM change triggered it. For NIS2 that matters directly: access can be traced back to an authorised HR source rather than an ad-hoc request. Joinly is ISO 27001 certified, runs in an EU data centre in Amsterdam, applies least-privilege by default, and is built to meet NIS2 and ISO 27001.
Example case
Take a pharmaceutical company with around 2,800 employees across its Dutch and German sites, running iHCM 2 on one tenant but still living in an on-premise Active Directory for its lab, quality and GxP-validated systems. Every new analyst, technician or production operator starts as an ADP report that IT processes by hand in AD — creating the object, choosing the country OU, building the login, adding groups. With seasonal contracts and frequent cross-site moves the queue never empties, and new joiners wait until day two or three for their account.
Connect ADP iHCM to Active Directory with Joinly and that work disappears. The Joinly AD Agent creates each user in the right country OU on the hire date, builds a unique sAMAccountName, adds the correct security groups, moves people on a transfer between sites and disables accounts on the termination date with a 30-day grace window — all driven by the HR change in iHCM.
“In a GxP environment we have to prove exactly who had access to which system and why. Now an account is simply ready in the right country OU when the analyst walks in, cross-site moves move themselves, and we can show the auditor precisely which iHCM change created every bit of access.” — Head of IT, pharmaceutical company
The outcome this setup is designed for: onboarding drops from days to zero touch, privilege creep from old assignments is eliminated, and the team can walk into its next NIS2 and GxP assessment with a complete, source-backed audit trail.
More than a connector
A standalone iHCM to Active Directory connection is a good start, but identity rarely stops at one target. The same Joinly setup extends to Entra ID for a hybrid environment and to your other systems, managing the complete chain from joiner to leaver with logging and governance built in. You review the exceptions; Joinly maintains the chain.
Schedule a demo
Installation guide
Follow these steps to connect ADP iHCM to your on-premise Active Directory with Joinly. Most of the setup happens in the cloud platform; the only local component is the lightweight Joinly AD Agent, which you install on a domain-joined server.
1. Create your account
Go to platform.joinly.app and create your account.
Note: charges may apply for using the platform after the trial period ends.

Sign up at platform.joinly.app to get started.
2. Find the ADP iHCM integration in the Joinly marketplace
Open the Joinly marketplace and search for the ADP iHCM integration.
Don’t see your system listed? Get in touch at support@koppelhet.nl and we’ll help you out.

Search the marketplace for the ADP iHCM integration.
3. Follow the installation wizard
You may be redirected to integrations.joinly.app. Create an account there and enter your iHCM connection details: your ADP API Central client ID and secret, plus the X.509 client certificate and private key from the ADP partner self-service portal for the mutual-TLS connection. All data is encrypted and stored securely.

Enter your ADP API Central credentials and client certificate in the wizard.
4. Download the Joinly AD Agent
In the platform, go to Workflows → Select a workflow → Add action → Select ‘Provisioning via Agent’ and download the installer. The agent is a lightweight Windows service that connects your domain to the Joinly cloud over an outbound HTTPS connection only — there are no inbound ports to open.

Download the Joinly AD Agent installer from the provisioning settings.
5. Install the agent on a domain-joined server
Run the installer on a domain-joined Windows server that can reach a domain controller. The server needs outbound HTTPS (port 443) to the Joinly cloud and a GMSA account installation on your domain controller. Run through the installer; it registers the agent as a Windows service that starts automatically.
6. Pair the agent with your Joinly tenant
Copy the pairing token from Settings → Provisioning → AD Agent in the platform and paste it into the agent’s configuration screen. The agent uses the token to register securely with your tenant; once paired, its status shows as Connected in the platform.

Pair the agent with your tenant using the pairing token.
7. Set the target OU and attribute mapping
Configure where users are created and how their attributes are built. Map the distinguished name / OU from department, cost center and country, and build the sAMAccountName, userPrincipalName, mail, department and manager with Liquid templates.

Select the OU and attribute mapping.
8. Configure your workflows
Create an onboarding (joiner) and offboarding (leaver) workflow with trigger-based execution, then an Identity updated workflow with a Create/update employee in Active Directory action so every change in iHCM flows through the agent to AD. Add a threshold workflow that disables the account a set period after the termination date (for example 30 days), optionally moving it to a disabled-users OU.

Create a trigger-based onboarding workflow.

A date-threshold workflow disables accounts a set number of days after termination.
9. Network and firewall requirements
The agent needs outbound HTTPS (443) to the Joinly cloud and a GMSA account with PowerShell access to your domain controllers. No inbound firewall rules are required, and no domain controller is exposed to the internet. For high availability you can run the agent on more than one server.
Need cloud Entra ID provisioning as well? See our guide on connecting ADP iHCM to Microsoft Entra ID, or contact support at support@koppelhet.nl.
Frequently asked questions
Does the Joinly AD Agent need inbound firewall openings?
No. The agent only makes an outbound HTTPS connection to the Joinly cloud and acts on your domain controllers from inside the network through a GMSA with PowerShell access. There are no inbound ports to open and no domain controller is exposed to the internet.
What account does the agent run under?
A Group Managed Service Account (GMSA) with PowerShell access to your domain controllers, scoped to the target OUs so it can create, move and disable user objects without domain-admin rights.
Which OU do new accounts land in?
The one your rules define. Joinly builds the distinguished name and OU placement from iHCM department, cost center and country, and moves the object to a new OU automatically when a worker transfers — including a move between country org charts.
How is the sAMAccountName built and kept unique?
From your Liquid template, with the generateUniqueUsername helper falling back to the next pattern on a collision, all within AD’s 20-character limit.
Can I provision to both Active Directory and Entra ID?
Yes. The same Joinly setup drives a hybrid environment — the AD Agent for on-premise AD and the native Entra connection for the cloud. See the iHCM to Entra ID guide.
Can I run more than one agent for high availability?
Yes. You can install the agent on multiple domain-joined servers so provisioning continues if one server is unavailable.


