In a company serving water systems, the contract may be signed, the work done and the part ordered, yet finance still does not know how much the customer owes or when it falls due. When information is spread across technicians’ files, the purchasing log and the invoices, answering takes time. This is where an Odoo implementation helps: a clear contract, work tied to it, a recorded cost, and an invoice with its outstanding balance. The ToDoOps team works with Saudi companies on this cycle, and you can read about how we implement Odoo for Saudi businesses before the details.

This article serves the commercial and administrative side of a water-services operator or contractor: finance, purchasing, spare parts, equipment maintenance and job cost. Treatment plants, laboratories and industrial control stay with their own specialised systems and teams.

The operating revenue of the water supply, sewerage, waste management and remediation sector in 2024 was about SAR 32.6 billion, according to Data Saudi, the platform of the Ministry of Economy and Planning. The figure covers the sector as grouped under that full name. The combined-sector figure provides context for the range of contracts and services involved; it is not a water-only market estimate.

Odoo Setup Starts with the Type of Service You Sell

Before configuring the system, we define with you what each contract sells: a water connection, a project, or maintenance. Each type has its own invoicing method, acceptance point and review. When this is clear, the team knows what is inside the contract and what needs additional approval, and invoices come out consistent with the agreement.

Maintenance and Cost Centres in Odoo

According to the Odoo 19 documentation, the Maintenance app organises preventive and corrective requests for equipment, with a person responsible, a scheduled date, a duration, a priority and stages. Analytic accounting lets you distribute cost and revenue across customer and vendor invoices through accounts and plans, with the field made mandatory if configured that way.

With this, your company tracks what the work of each contract, site or machine cost, and separates project materials from routine maintenance visits. The maintenance team sees its open request, purchasing knows which part was ordered and which was actually received, and equipment maintenance stays planned. You arrive at the follow-up meeting knowing what is waiting on a part, what is waiting on a technician, and what is already done.

To see which applications cover this cycle, review Odoo apps. Related activities are on the industries page.

Worked Example: From the Invoice to the Remaining Balance

This is a hypothetical example to explain the idea, not a client case. For this simplified calculation, all amounts exclude tax and fees. The service-contract invoice has a net value of SAR 12,000, and SAR 5,000 is allocated and reconciled against that net amount, leaving SAR 7,000 of the net value outstanding. The actual customer statement includes every tax and fee applicable to the invoice.

This figure is kept separate from other things: a service task that is still a draft, the volume of water actually delivered, an overdue amount that is determined by the due date, and net profit. Each of these has its own source and definition.

The daily benefit: finance knows what has not been paid and when the next due date is, operations knows the open work order, and purchasing knows the part request and the actual receipt. The follow-up meeting gets shorter because everyone looks at the same document.

Cost of Implementing Odoo for Water Companies and the Starting Scope

The project scope and effort depend on the number of contracts, assets and service types, and the state of your current data. For an initial picture of implementation cost and potential savings, the ToDoOps calculators are an optional estimating tool, and you can contact us directly to discuss your scope.

What Stays with Specialised Systems

If you have SCADA systems, a quality laboratory, meters and tariffs, or regulatory bodies, connecting to them is defined with your specialists according to the interfaces available. Operating decisions and water quality remain with the specialised team. If you want to analyse quantity differences, we tie the report to approved readings, stock balances and the same time period, so that explaining the difference is useful.

To see how a process moves between departments, try Odoo interactively. It is a guided simulation with hypothetical data for a sales and inventory flow. It helps finance and operations understand a cycle that passes between departments, but it does not represent every function of a water business.

Start with One Contract and One Asset

The easiest start is one typical service contract, one machine or asset, a maintenance task, a part request and an invoice. We follow the cycle from contract to invoice to collection, then expand to the remaining contracts and sites once the team has confirmed the numbers.

Frequently Asked Questions

Can invoicing be linked to meter readings or existing billing systems? The link can be studied once the source of the reading, its format and the responsible party are defined. We define the interface, the exchanged data and the test with you before implementation, and we separate what Odoo handles from what stays in the reading system.

How do we move from our current files and systems? We start with the list of active contracts, the asset register and the spare-part items, and move first what daily operations need. Teams are trained by role, the system goes live on a pilot cycle before expansion, and anything beyond that, such as archives, is decided according to your need.

References

  • Odoo 19 documentation, the maintenance requests page and the analytic accounting page: reference for preventive and corrective maintenance, and for distributing cost across accounts and plans.

Next Step

When every department sees the contract, the work, the cost and the invoice in one place, follow-up gets faster and decisions get clearer. Get to know the ToDoOps solution for Odoo, and try the implementation calculators to estimate the budget. Contact us to discuss a contract cycle that represents your business, from the service task to the invoice and collection.