Service and maintenance agreements are one of the most reliable ways to build a steady income on top of your project work. The problem is that managing them manually is genuinely painful. As your number of installations grows, that kind of system starts to break down.
That is why we built Contract Management in OpusFlow. It takes care of the heavy lifting: creating contracts, collecting digital signatures, generating invoices on schedule, and collecting payments automatically when Direct Debit is set up. The one step your team still handles manually for now is sending the generated invoice to the customer, but everything else runs in the background without anyone having to chase it.
Why installers struggle with manual invoicing
The risk is not just wasted hours. Missing a billing cycle means delayed income. Sending an invoice twice damages trust with a customer. And without a clear overview of what has been billed and what is pending, it becomes hard to predict your cash flow accurately. These are not unusual problems. They are what manual contract management tends to look like when a business starts to grow.
What is OpusFlow Contract Management for installers?
Contract Management is built to remove exactly that kind of complexity. Instead of handling contracts and invoicing in separate tools or manual steps, everything is brought together in one flow inside OpusFlow.
Instead of handling contracts and recurring invoices manually, you create a contract once inside OpusFlow, link it to a customer, and define how it should be billed. From that moment, the system takes over the operational work. Contracts can be signed digitally, activated automatically, and then turned into recurring invoices without manual input each month.
At the same time, payments can be collected automatically through SEPA Direct Debit via Mollie, so payment collection does not depend on manual bank transfers or reminders. This gives installers a single place where contracts are not only stored, but also actively managed and processed throughout their full lifecycle.
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5 key features of Contract Management in OpusFlow
The Contract Management module in OpusFlow covers the full contract cycle in one place. You can create service and maintenance contracts, send them out for digital signature, and let the system automatically generate invoices and collect payments on a set schedule. For now, sending the generated invoices to customers still requires a manual step, but the creation and billing logic runs automatically in the background. Here is a closer look at the five features that make this possible.
Automatic invoice generation for active contracts
Once a contract is active, OpusFlow takes care of the billing for you. A built-in billing engine runs every night and checks which contracts are due for invoicing. When a contract reaches its billing date, the system generates the invoice automatically, without anyone having to remember to do it. This means your billing keeps running in the background, even when your team is busy with installations or other work.
Once the invoice is generated, your team sends it to the customer, and from there the payment flow takes over.
SEPA Direct Debit payments via Mollie integration
OpusFlow gives you two ways to handle payment collection on contracts. If you want fully automatic payments, you can connect a Mollie account directly within OpusFlow’s integration settings and enable SEPA Direct Debit. When a customer signs their contract, they authorize a bank mandate at the same time, and future payments are collected from their account automatically on the scheduled dates.
Digital contract signing with a magic link
Customers do not necessarily have to download anything or create an account to sign their contract. OpusFlow sends them a secure link by email. They can open it on their phone or computer, read the contract in the Customer Portal, draw their signature on screen, and authorize their bank mandate if applicable. The whole process takes just a few minutes and works on any device. This makes it easy for customers to say yes quickly, without any friction on their side.

Every signature is tracked with an exact timestamp and IP address, and OpusFlow automatically handles the required SEPA pre-notification rules, so the legal side is covered without any extra steps from your team.
Reusable contract types for consistent packages
Dry run mode and double-billing protection
Before running billing for the first time, you can use Dry Run mode to simulate the process without actually generating any invoices or charging anyone. This lets you check that everything is set up correctly before it goes live. On top of that, OpusFlow has built-in safeguards that prevent a customer from being billed twice for the same period. Even if something is triggered by mistake, the system catches it automatically.

How Contract Management optimizes your daily operations
Contract Management changes how teams handle recurring work on a day-to-day level. Instead of constantly tracking who needs to be invoiced, when contracts expire, or whether payments have been collected, everything follows a structured and automated flow inside OpusFlow. This removes a lot of the small manual tasks that usually take up time in finance and operations teams.
It also reduces uncertainty in billing. Once a contract period has been processed, it is locked in the system and cannot be invoiced again, even if someone accidentally tries to trigger it a second time. This creates a reliable financial process where teams do not need to double-check or manually validate every step.
The result is fewer errors, less back-and-forth between departments, and more time spent on actual project delivery instead of administrative control work.
Experience steady cash flow with OpusFlow
Managing service and maintenance contracts should not feel like a separate system running next to your daily work. With Contract Management in OpusFlow, everything from contract creation to payment collection follows one connected flow inside the same platform you already use for projects and operations. Instead of switching between tools or manually tracking billing cycles, the process becomes structured, predictable, and mostly automatic in the background.

If you want to see how this works in practice for your own business, book a free demo or get in touch with our team. We will walk you through the setup and show how it fits into your current way of working, so you can decide if it is the right step for your process.



