As-salamu alaykum! When it comes to determining if Facebook marketing and Ads services are halal, it’s important to consider the specific content and purpose of the ads. Generally, advertising products or services that are permissible in Islam is allowed. However, if the ads promote haram (forbidden) products or involve unethical practices, it would not be considered halal. It’s always a good idea to consult with a knowledgeable Islamic scholar for a more specific and detailed answer. May Allah guide you in your endeavors!