Search policies Advertising policies & guidelines Introduction Legal, privacy and security General ad requirements Text guidelines Media formats Relevance and quality Disallowed content Restricted categories Ad extensions policies Product ads policies Publisher specific requirements Intellectual property policies Creative specs Additional resourcesException processHistory of changes to policiesTaiwan policies: English/ChineseContact us Microsoft Advertising policies Disallowed content February 14, 2022 BackPyramid schemes, chain letters On this page Advertising for products or offerings that promote the following is not allowed: Ponzi schemes, pyramid schemes, or other legally questionable business opportunities, particularly if: Returns on investment rely solely on adding participants to the scheme. The user must pay a subscription fee or buy a specific product to join, and the value proposition of doing so is defined. Chain letters or offerings that imply that non-participation might result in loss or bad fortune. Employment on income: Content that facilitates and/or promotes any “employment on income” opportunity which requires payment.