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Your HR department is overwhelmed. Your HR director is asking for a fourth staff member to "handle the workload." Your payroll managers spend three days a month entering expense reports into Silae. Onboarding a new employee involves four hours of paperwork per hire. Your managers are telling you that leave requests take five days to be approved because the HR tool doesn’t send notifications to Teams.
And the solution they always offer you is to "migrate to a more modern HRIS." Switch from Silae to Lucca. Switch from Lucca to PayFit. Switch from PayFit to ADP. Budget: €80,000 to €200,000 for a 12- to 18-month project, with three months of operational chaos during the migration.
Except that your HRIS isn't the problem.
The real problem is that a significant portion of your HR department’s time (often estimated at 30–40% based on our field experience) is consumed by repetitive tasks that add no business value: re-entering data across tools, manual follow-ups, bureaucratic checks, updating Excel tracking spreadsheets—the same is true forother departments, such as accounting. These tasks exist because your HR tools (all HRIS systems, not just yours) aren’t designed to integrate natively with your daily workflow: Teams, Outlook, SharePoint, your accounting software, your ERP.
This article shows you how to reclaim a significant amount of that time without touching your HRIS. By automating the "glue" layer between your tools. With mature technologies, reasonable budgets (starting at just a few hundred euros per month), and an ROI that far exceeds that of any HRIS migration project in most contexts.
Why switching HRIS systems is (almost always) the wrong answer
HRIS vendors love to market their products as miracle solutions. On paper, Lucca replaces Silae, PayFit replaces ADP, and Kelio does it all. But in the real world of your HR department, here’s what actually happens when you migrate.
The actual cost of an HRIS migration
For an SME with 150 employees, migrating from one HRIS system (such as Silae) to another (such as Lucca), or vice versa, costs:
- New HRIS: €8–15 per employee per month, or €15,000–30,000 per year (recurring)
- Migration project: €40,000–€80,000 in consulting fees + 200–400 hours of internal HR time
- Import of historical data (DADS, STC, payroll records): €15,000–€30,000
- Team training: €5,000–€10,000
- Double-run period: at least 2–3 months, with a risk of missed paychecks
Total budget for Year 1: €80,000–€150,000. And in the end, you’re left with… yet another HRIS. One that has the same structural limitations: it doesn’t integrate natively with your other day-to-day tools.
What no HRIS does (and what it really costs you)
Take an honest look at the list of repetitive tasks in your HR department:
- Entering a new employee's information into 4–5 different systems (HRIS, Active Directory, Teams, business application, time clock)
- Manually follow up with managers to approve leave requests
- Consolidate expense reports from Excel files sent via email
- Verify that the time records match the pay stubs
- Generate payroll reports and send them to the accounting department
- Answering employees' questions about "how much RTT time I have left" manually
- Update Excel spreadsheets for tracking annual reviews
- Follow up with employees who have not signed their amendment
No HRIS does all that. Not even the newest, most cloud-based, or most AI-driven ones. Because that’s not what it’s designed to do: an HRIS stores HR data and generates paychecks. Period.
These tasks serve as the "glue" layer between your HRIS and the rest of your IT system. And this layer is built through automation, not by replacing the HRIS.
The 8 Most Cost-Effective HR Processes to Automate
Here are the 8 automation solutions that deliver the best ROI for French SMEs, ranked by implementation speed and time saved.
For an SME with 150 employees and a three-person HR department, based on our practical experience, the combined cost of these automation measures can amount to:
• Approximately 120 to 200 hours of HR time saved per month (rough estimate)
• Approximately 1 to 1.5 HR FTE freed up from low-value tasks
• Without increasing headcount. Without changing tools. Without training your team on anything other than Teams and Outlook.
3 types of automation technology: which one should you choose?
The HR automation market is confusing because three categories of technology are marketed as THE universal solution. In reality, each one addresses a specific type of problem. Mixing and matching approaches based on use cases is a smarter strategy than trying to choose "the best" one.
iPaaS — for workflows between tools
iPaaS (Integration Platform as a Service) connects your tools to one another using visual workflows. When an event occurs in one tool (a new hire in Silae, a leave request in Lucca, or an approval in Teams), a series of actions is automatically triggered in other tools.
The market is divided into three segments:
- Consumer-facing iPaaS platforms (Zapier, Make, n8n): accessible, with a wide range of connectors, but limited in terms of volume, governance, and security. Budget: €20–200/month depending on volume.
- French turnkey iPaaS solutions (such as Save Time Factory, developed by IT Systèmes): configuration and maintenance services are included, making them ideal for SMEs without an IT department. Pricing starts at €19.90/month/data feed. Suitable for small businesses and SMEs that want to outsource these tasks.
- Enterprise iPaaS platforms (such as Workato, Boomi, or FlexFlow—also developed by IT Systèmes to meet the needs of French mid-sized companies): for companies with strong governance, high transaction volumes (up to 10 million transactions per month), and sovereign hosting. Budget: €1,000 to €5,000 per month.
For which HR processes: onboarding, leave requests, HRIS → M365 synchronization, annual reviews, and basic document management.
The AI agent — for tasks that require "understanding"
The AI agent is a system based on a large language model (GPT, Claude, Mistral) that can read, understand, extract information, categorize, and respond. Unlike iPaaS, which follows fixed rules, the AI agent makes context-aware decisions.
Strengths: processes unstructured data (scanned expense reports, employee requests in natural language, contracts), available 24/7, learns from your processes.
Limitations: more expensive to develop, requires domain expertise, may produce errors that need to be mitigated, and depends on data quality.
Estimated budget: €25,000–50,000 for a well-defined HR AI agent. Subsequent subscription: €100–300/month (LLM API costs).
For which HR processes: expense reports (extraction + categorization), conversational HR assistant, generation of contract documents, interview analysis.
Learn more: How much does an AI agent cost?
RPA — for interfaces without APIs
RPA (Robotic Process Automation) automates tasks by simulating a human user clicking through graphical user interfaces. It reads the screen, clicks buttons, and enters data. It is useful for legacy systems without APIs.
Strengths: Works with any tool, even without an available API, making it ideal for legacy HRIS systems and business tools. Automates processes that would otherwise be impossible to automate. Modern solutions like Robot Clic OCR combine RPA and AI for greater resilience.
Limitations: fragile (breaks if the interface changes), expensive to maintain, often costly licenses for major platforms (UiPath, Automation Anywhere), steep learning curve for your team.
For which HR processes: pre-payroll reconciliation, data extraction from legacy HRIS systems without an API, end-to-end processes in legacy tools.
🎯 iPaaS, AI agents, RPA: Not sure where to start?
We’re offering a 90-minute workshop to map out your HR processes, identify the three automation initiatives with the highest ROI in YOUR specific context, and provide a cost estimate for the project. No obligation—led by an HR expert and an automation expert.
Case Study: Automated Onboarding That Saves 3 Hours Per Hire
To illustrate this, let’s take the example of the most common and cost-effective process: onboarding a new employee.
Before automation (the current daily routine)
When a new employee is hired at an SME with 120 employees, here is what typically happens in the HR and IT departments:
- Entering employee records in the HRIS (30 min)
- Email the IT department to request the creation of a Microsoft 365 account (5 min + response time)
- Manually create the account in Entra ID and assign M365 licenses (20 min)
- Create the local Active Directory account, if applicable (10 min)
- Addition to the appropriate security groups based on the position (15 min)
- Workstation Setup (Intune, VPN, Business Applications) (45 min)
- Sending credentials via separate channels (10 min)
- Sending welcome documents via email (15 min)
- Setup of badge access + parking (10 min)
- Added to business tools: CRM, accounting, ERP (30 min)
- Scheduling of mandatory training (GDPR, security, job-specific) (20 min)
Total time: 3.5 to 4 hours per hire, divided among 4–5 different people, with a lead time of 2–5 days before everything is up and running.
For an SME that hires 30 people a year, that amounts to 100–120 hours lost annually. Not to mention the frustration of the new employee waiting for their access credentials.
After automation
HR enters the new employee's information into the HRIS (Silae, Lucca, PayFit—it doesn't matter which one). Then, the following happens automatically:
- An automation workflow detects new entries via API or scraping, depending on the HRIS
- Automatic creation of the account in Entra ID with the correct attributes (first name, last name, job title, manager, department)
- Automatic assignment of M365 licenses based on workstation (dynamic group)
- Automatic addition to Active Directory security groups (based on department and role)
- Automatic deployment of the business application package via Intune
- Send an SMS to your personal phone with the ID and a link to reset MFA
- Send an email to the manager with the onboarding checklist and the tentatively scheduled training dates
- Automatically create a custom SharePoint page with welcome documents
- Notification to the CISO for approval of sensitive access (NIS2 compliance)
- Creating a help desk ticket for the issuance of physical equipment (ID badge, laptop)
HR + IT time: 10 minutes for initial data entry. Everything else happens automatically in 15–20 minutes. The new employee is up and running from day one.
ROI figures
For 30 new hires per year:
- Time saved: 30 hires × 3 hours = 90 hours/year
- Average hourly rate for HR and IT: €60/hour
- Direct savings: €5,400/year
- Indirect benefits (new employee productive from day one): difficult to quantify precisely but often significant
- Reduction in errors related to account creation and failure to deactivate accounts: several thousand euros saved annually (conservative estimate)
Cost of the onboarding automation project: €1,000 to €10,000, depending on the solution chosen (consumer-grade iPaaS vs. turnkey platform).
The payback period is typically less than three months in most cases, and often less than a month when indirect benefits are included.
And that's just onboarding. Multiply that by the other seven processes that can be automated.
A comprehensive ROI calculation for an SME with 150 employees
Here is a realistic look at what automating the eight HR processes identified above would look like for a French SME with 150 employees and a three-person HR department.
Investment in Year 1 (range depending on the approach chosen)
Total budget for Year 1: €20,000 to €65,000, depending on the scope of the project, the size of the company, and the chosen solution (turnkey platform with services included vs. enterprise iPaaS with an in-house team).
Annual savings
Estimated HR time saved: 120–200 hours/month × 12 months = approximately 1,440 to 2,400 hours/year
Estimated value based on the average HR hourly rate (€65/hour): approximately €94,000 to €156,000 per year in time saved.
But keep in mind: this value isn't a cash saving. It's time reallocated to higher-value tasks (talent development, manager coaching, strategic HR projects).
Here are the real cash savings:
- The decision not to hire a fourth HR staff member who would otherwise be needed
- Reducing payroll errors / manual adjustments
- Reducing employee turnover through an improved employee experience
- Simplified NIS2/GDPR compliance (lower risk of fines)
Estimated direct cash savings: €80,000 to €120,000 per year starting in year 2.
Payback
With an initial investment of around €20,000–€65,000 and recurring savings of up to tens of thousands of euros per year, the payback period typically ranges from 3 to 12 months, depending on the scope of the project and the maturity of your IT system.
Compared to an HRIS migration: an investment that is often two to three times higher—only to end up with a different HRIS but with the same structural limitations. In most cases, there are no direct cost savings.
In most SME settings, the math clearly favors automation.
The 5 Most Common Pitfalls in HR Automation
Pitfall 1: Starting with the most complex process
Many HR directors want to tackle automated payroll processing head-on because that’s “where we waste the most time.” Wrong. Payroll processing is the most complex process, with the most special cases (amendments, one-time bonuses, advance paid leave, meal vouchers). Starting there means failing within three months and abandoning the entire project.
Best practice: Start with the 2–3 simplest processes (onboarding, leave requests, annual reviews). Deliver value within 4–6 weeks. Build trust. Then tackle the complex issues with a well-established team.
Pitfall 2: Choosing a tool that isn't the right size for you
Mid-sized companies looking to automate using consumer-grade tools (such as Zapier or Make) run into roadblocks related to volume, governance, and security as soon as they scale up. Conversely, small and medium-sized businesses that are sold an enterprise-grade platform end up paying 10 times too much for their basic needs.
Best practice: Choose a tool based on your size, volume, and governance needs. SMEs without an IT director → turnkey solution with services included. Mid-sized companies with an IT director → enterprise iPaaS. Never let the tool’s budget exceed the savings it generates.
Pitfall 3: Automating a broken process
If your current leave request process involves four levels of approval when two would suffice, automating this process will result in an automated mess, not a good process. You’ll just have sped up the wrong approach.
Best practice: Before automating, simplify. Question every step. Eliminate anything that doesn’t add value. Automate the simplified process, not the existing one.
Pitfall 4: Neglecting change management
Your payroll staff, HR team, and managers have their habits. They track leave requests in their own Excel spreadsheets. They approve expense reports by printing out PDFs. They have their little quirks. If you automate these processes without getting them on board, they will (whether consciously or not) sabotage the new system and revert to the old one.
Best practice: 20 to 30% of the automation budget should be allocated to change management. This includes training, workshops, internal ambassadors, and accessible documentation. No automated tool should be implemented without user buy-in.
Pitfall 5: Neglecting HR data governance
HR automation handles highly sensitive data: salaries, performance reviews, sick leave, and personal identifiers. If you create a workflow that retrieves data from the HRIS and sends employee data to Teams without access controls, you are creating a major GDPR risk.
Best practice: Involve the DPO from the design phase. Classify each data flow. Document data processing activities. Implement access logs. HR automation is as much a cybersecurity issue as it is an HR one—prioritize solutions with French sovereign hosting for sensitive data.
Our recommendation, based on your height
After completing around 50 automation projects at French small and medium-sized businesses over the past three years (including about 15 specifically focused on HR), here is our actual decision matrix.
If you have fewer than 50 employees
Stay practical. Automate the 2–3 most repetitive processes (onboarding, leave requests, annual reviews) with a turnkey iPaaS solution. Startup budget: a few thousand euros. Quick return on investment.
Contrary to popular belief, AI agents are now accessible even to companies with 20 to 30 employees. Use cases such as a conversational HR assistant, automatic expense report processing, or the generation of contract documents can be cost-effective even at this scale. This is one of the reasons why we offer AI agents for businesses of all sizes, including micro-businesses and small and medium-sized enterprises (SMEs). The right solution depends on the volume and use case, not just the size of the organization.
If you have 50–250 employees (primary target)
This is the sweet spot for HR automation. Your HR department is large enough to yield significant time savings, but small enough to make the project manageable.
At this scale, a turnkey platform with service included greatly simplifies the project: you don’t need an IT director, as setup and maintenance are handled by the service provider. This is exactly the need that led us to develop Save Time Factory (€19.90/month/data stream, setup and maintenance included)—a solution we use for our own SME clients before offering it as a product. For unstructured data processing needs (expense reports, employee FAQs), we add an AI agent to the most cost-effective use cases. Total budget: €20–45k. Payback in 6–9 months.
If you have 250–1,000 employees
You likely already have a structured HR team with an enterprise-level HRIS. But you also have 4–5 additional HR tools (payroll HRIS + performance review tool + expense reporting tool + absence tracking tool + recruitment tool). The challenge now lies in integration and governance, not just automation.
At this scale, an enterprise iPaaS with robust governance becomes essential. French platforms generally offer the best balance of capabilities and sovereignty. It is within this context that we developed FlexFlow, our sovereign enterprise iPaaS platform (supporting up to 10 million transactions per month, hosted in France, with native NIS2 compliance), to meet the needs of our mid-market clients who could not find a French equivalent to American solutions such as Workato or Boomi.
Budget: €40,000–€100,000 per year. Payback period of 9–18 months based on the amount of savings generated.
If you have 1,000 or more employees
You are likely using a comprehensive "HR Tech Stack" strategy with an HRIS designed for mid-sized companies (Workday, SAP SuccessFactors, Oracle HCM). Your challenge now lies in orchestrating generative AI at scale. This project goes well beyond the scope of this article; we recommend seeking strategic guidance early on instead.
Frequently asked questions
Should you switch HRIS systems to automate your HR processes?
No. In 90% of cases, your HRIS systems (Silae, Lucca, PayFit, ADP, Sage Payroll, etc.) can easily remain in place. The time savings come from automating the "glue" layer between the HRIS and your other tools (Teams, SharePoint, accounting, ERP), not from replacing the HRIS. Switching HRIS systems costs €80–150k and yields marginal gains. Automation costs €20–65k and recovers 40% of HR time.
How much does an HR automation project cost for an SME?
For an SME with 150 employees, a project covering 5–8 automated HR processes costs between €20,000 and €65,000 in initial investment, depending on the approach chosen, plus €1,200 to €12,000 per year in software licenses. Turnkey solutions with included services (such as Save Time Factory, starting at €19.90/month/workflow) allow you to get started with a very small budget and scale up gradually. The payback period ranges from 3 to 10 months.
What is the difference between iPaaS, RPA, and AI agents?
iPaaS (Make, n8n, Power Automate, Zapier, FlexFlow, Save Time Factory) connects tools via visual workflows based on fixed rules—ideal for simple integrations. The AI agent uses a large language model to understand and make decisions—ideal for tasks involving unstructured data (expense reports, employee FAQs). RPA simulates a human clicking through interfaces—ideal for legacy tools without APIs. The best projects combine all three technologies depending on the use case.
Should you choose a French vendor for your HR automation?
This applies in three scenarios. Scenario 1: You handle sensitive HR data (salaries, sick leave, performance reviews) that is subject to the GDPR and potentially NIS2—a French provider guarantees hosting within the EU and support in French. Second scenario: You are an SME without an IT department and need support in French, with simple contracts and billing in euros—French turnkey solutions are designed for this context (this is notably why we developed Save Time Factory for our own SME clients). Third scenario: You are a mid-sized company with governance and volume requirements—certain French platforms like FlexFlow (also published by IT Systèmes) rival Workflow or Boomi while being less expensive and sovereign. For non-sensitive processes, an American iPaaS remains a perfectly acceptable option.
How long does it take to implement HR automation?
A simple workflow (such as leave requests or onboarding) can be implemented in 2–4 weeks. A comprehensive project covering 5–8 processes takes 3–6 months, depending on the complexity of your existing IT system. A project involving a custom AI agent requires an additional 2–4 months. These timelines include scoping, development, pilot testing, phased deployment, and change management.
Start small, measure, then scale up
HR automation isn’t about technology. It’s about how work is organized. By 2026, the tools (iPaaS, AI agents, RPA) will be mature, accessible, and reliable. The real question is your ability to identify the right processes to automate, get your HR department on board with the project, and measure the benefits to justify moving forward.
Our advice: Start with 2–3 simple processes (onboarding, leave requests, and annual reviews), measure the actual gains over a three-month period, and use these quantifiable results to justify expanding the scope. That’s how projects succeed. Projects that launch with a “major 12-month HR automation plan” fail in 70% of cases.
And never forget: automation isn’t about eliminating human work. It’s about eliminating low-value tasks to free up time for what really matters—talent development, managerial support, and HR strategy. Your HR team deserves better than having to re-enter vacation requests across three different tools.
Note on the figures presented in this article
The figures presented in this article (time saved, budgets, cost savings, payback periods) are indicative estimates based on our hands-on experience with HR automation projects implemented in French small and medium-sized businesses. Actual gains vary significantly depending on your specific context: company size, maturity of your IT system, scope of the project, complexity of your existing processes, and the quality of change management.
For an accurate estimate tailored to your situation, we always recommend an initial audit lasting a few hours, which allows us to map out your actual processes and project realistic savings—it’s free and non-binding; simply fill out our contact form.
Ready to save 40% of your HR department’s time?
We’re offering you a 90-minute audit to map out your current HR processes, identify the top three workflows to automate in your specific context, and provide a three-year cost estimate for the project. It’s free and there’s no obligation. We’ll give you honest guidance on the best solutions available based on your company’s size and specific needs.
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