Odoo for an International Consulting Group: Multi Currency Billing and Margin Control

When several related companies share the same consultants and clients, and the work runs across different currencies, the biggest risk is simply losing track of the numbers. For one international group we built an Odoo solution that brought the whole process together. From the signed contract to the final invoice, everything now moves through one controlled flow.

Challenge

The group's billing ran on a set of internal rules that had grown almost impossible to manage by hand. Every consultant assignment carries its own purchase price, sale price, currency and service fee. Clients are invoiced in one currency. Consultants are paid in another. And the group needs to see its margin in a third, a common reporting currency.

The process was slowed down further by internal company to company settlements, agent commissions and a firm requirement to print internal contract numbers on invoices instead of system generated codes. Before our work, time tracking, approvals and invoicing were separate steps with no connection between them. Errors were almost guaranteed. Part of the margin would quietly disappear along the way.

Solution

We configured Odoo so the system itself understands how this group does business.

Contracts and pricing, all the data now lives in one place. The system holds the prices, currencies and fees, and it uses the company's real contract numbers. Consultant portal, we built a simple tool for logging monthly working time. Consultants enter their hours in a calendar, mark sick days and holidays, add notes and submit expenses by photographing receipts. Client approvals, clients got their own portal where they see and confirm only the time of the specialists assigned to them. A clear approval path, when the data does not add up, a manager or a client can reject it or send it back for correction. Invoicing assistant, we built a tool that automatically groups billing items by company, client and currency. The user marks the lines to bill and the invoice is generated for them. Separated payments, paying consultants now runs independently of client invoices, so the two processes no longer block each other. Margin engine, the system calculates the group's profit in the common currency, accounts for agent shares and handles the internal company fees.

On top of this we cleaned up currency conversion. Expenses are recalculated automatically. Only the time that has actually been approved gets billed. And the small currency adjustments on final invoices are kept within limits, so rounding and rate differences do not turn into mistakes. We tested the full logic under real conditions and the system is fully operational.

Result

The group now handles all of its billing in a single flow. Time tracking, approvals and invoicing have become one connected chain instead of three disconnected tasks.

Automatic currency conversion and margin calculation removed the manual errors. Invoices carry the internal contract numbers, so the documentation matches the group's own standards. Clients approve hours themselves, which sped up the whole cycle. Internal settlements between companies and the agent shares are now visible and transparent.