What’s the difference between Statement of Work and Contingent Workforce in SAP Fieldglass? In short, Contingent Workforce is used when you need to hire individual external resources, while Statement of Work is used when you want to procure a defined service with clear deliverables, milestones, and business outcomes. In this Implema Talk article, SAP Fieldglass expert Joacim Karlsson explains how the models differ and when each model is the best fit.
When organizations procure external resources, it’s easy to focus on how the purchase should be carried out. According to Joacim Karlsson, there’s a more important question to start with.
“The first question I usually ask is: What is it you’re actually going to procure?”
The answer often determines which model is the best fit. Do you need to strengthen an existing team with a consultant for a few months? Or do you want a supplier to take responsibility for delivering a finished service? Those are two very different business situations.
Contingent Workforce is designed to manage individual external resources.
For example:
The organization is still responsible for day-to-day management and follow-up, while SAP Fieldglass streamlines procurement, onboarding, and administration.
This is the model most people associate with external staffing.
Statement of Work works differently. Here, the business isn’t buying a person, but an assignment with a defined outcome. To illustrate the difference, Joacim uses a simple example.
Imagine a receptionist is on sick leave for a few months. Then it’s natural to bring in a replacement through Contingent Workforce.
But what if the business instead wants to outsource the entire reception function to an external supplier? Then it’s no longer a person being procured. It’s a service.
“With Statement of Work, you’re not buying a person. You’re buying an entire service.”
That difference is central. The focus shifts from number of hours to the outcome the supplier is expected to deliver.
A common misconception is that Statement of Work means a single type of contract. That’s not the case. On the contrary, Joacim describes flexibility as one of the model’s biggest advantages.
Within the same Statement of Work, the organization can combine several different commercial setups, for example:
“Statement of Work agreements are very flexible.”
That makes the model useful both for smaller consulting engagements and for larger service deliveries where multiple suppliers and deliverables need to be coordinated.
Both Contingent Workforce and Statement of Work are parts of SAP Fieldglass. The difference isn’t in the system. The difference is in how the business wants to procure external services.
When that difference becomes clear, procurement also becomes easier to structure and follow up.
Statement of Work (SOW) is used to procure a service or project where the supplier is responsible for delivering an agreed outcome, rather than providing individual consultants.
Contingent Workforce is used to manage external resources such as consultants, contractors, and temporary staff, where the organization buys the individual’s expertise for a limited period.
The biggest difference is that Contingent Workforce is about procuring individuals, while Statement of Work is about procuring a defined service or business outcome.
Statement of Work is a good fit when a supplier is to take responsibility for an entire engagement with defined deliverables, milestones, and commercial terms.
Contingent Workforce is a good fit when the organization needs to strengthen the business with individual external resources for a limited time.
| Situation | Contingent Workforce | Statement of Work |
|---|---|---|
| You need a consultant | ✓ | |
| You need a specialist for a limited time | ✓ | |
| You want to buy a finished outcome | ✓ | |
| The supplier is responsible for delivery | ✓ | |
| Payment is tied to milestones or deliverables | ✓ | |
| You’re buying hours and expertise | ✓ |
Business Area Manager Business Transformation
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