Since August 11, cold calling has been banned in the real estate sector in France. This means that real estate agencies can no longer call individuals out of the blue to offer their services. Only those who have given explicit, free, and verifiable consent can be contacted. An advertisement on a property portal, for example, does not count as consent, as it is meant to invite buyers to make offers, not to accept a mandate from an agent. The decree of July 23 outlines these rules: mandates can last a maximum of one year, cannot be renewed automatically, and must be archived for three years. It is the responsibility of the real estate agency to prove that consent was given. Fines can be as high as 375,000 euros for a legal entity that breaks these rules. The challenge now is figuring out where the next mandate will come from. A property owner may request an appraisal, and an agent visits to provide a valuation report. At first, the project might not be ready—for example, if the owner is dealing with an inheritance or a hesitant spouse. The agent notes the exchange and moves on to the next file. Eighteen months later, the property may be for sale, and the owner might have been contacted by an agency nearby that had sent information about recent sales in the area. This kind of contact is no longer possible through cold calling. Important details remain in the agent’s phone, but a buyer is not called back after a visit. A mandate may approach its end without a clear plan for next steps. Each of these missed opportunities may not seem significant on their own, but over the course of a year, they can add up to several thousand euros in lost revenue. The phone is no longer a tool to make up for these gaps. If answering a call requires exporting data and spending two hours on reprocessing, business meetings must rely on declarative content. This is why WHISE was created. Every contact, every source, and every exchange can be timestamped in one place. After an appraisal, a next action is programmed immediately. Priority follow-ups are reviewed every morning. WHISE analyzes a database to highlight property owners with higher sales potential, such as former buyers or dormant appraisals. August 11 has leveled the playing field for all real estate agencies: no one can enter a mandate by calling an unknown person without their consent. The difference between agencies now will be determined by the quality of their customer files and the discipline in their follow-up processes. More than 1,800 agencies are already using WHISE to manage their activities, showing that adapting to these new rules is becoming a priority for the industry.