السلام عليكم ورحمة الله تعالى و بركاته،
The SMMA or social media marketing agency, or what is also known as drop serving, is a type of electronic commerce. I will explain how this is done. If it is an agency in which I will offer marketing services to different companies via the Internet, they will be contacted via e-mail, etc. When the companies accept the contract, Pay the money in advance before implementing the service. When I receive the money, I will go to a customer on one of the famous electronic platforms and ask him to implement the service, then I will send it to the company that I contracted with. Is this considered selling what we do not own, as stated in the noble Prophet’s hadith? Is this considered halal or haram?