Is the EU withdrawal button mandatory yet?

No. A standardised EU-wide withdrawal button is proposed and forthcoming, not yet a binding legal obligation. The idea is to give consumers a single, harmonised control to exercise their withdrawal right online, but until the proposal is adopted and its details are finalised you should not treat an EU withdrawal button as a legal requirement.

It is easy to conflate three separate things, so it helps to keep them apart.

• The 14-day right of withdrawal already applies. Under the EU Consumer Rights Directive (2011/83/EU), consumers can withdraw from most distance-sales contracts within 14 days, usually without giving a reason. This is in force across the EU today.
• The EU withdrawal button is proposed. A harmonised on-site button to trigger that withdrawal right is being developed at EU level. It is not yet binding, so there is no EU-wide requirement to display one.
• Germany’s cancellation button already exists. Germany requires a mandatory cancellation button under section 312k BGB, in force since 1 July 2022, for continuing-obligation contracts concluded online. That is a national rule about ending ongoing contracts such as subscriptions, and it is a concrete precedent for the EU direction of travel.

So what should a PrestaShop merchant do now? First, make sure you correctly honour the 14-day withdrawal right for your EU customers, with clear information and a working process. Second, if you sell recurring contracts to German consumers, provide the German cancellation button required by section 312k BGB. Third, keep an eye on the EU withdrawal-button proposal so you are ready to implement it if and when it becomes binding, but do not present it to yourself or your team as an existing obligation.

In short: the 14-day right is here, Germany’s cancellation button is here, and the EU withdrawal button is on the way but not yet mandatory.

This answer is a general explanation, not legal advice. The status of the EU withdrawal-button proposal can change, so confirm the current position against official EU sources before you rely on it.