Once an ad is created, it will be sent to review to make sure it meets Snap advertising guidelines and policies.
Not all approved and published organic content (e.g. Story or Spotlight content) is eligible to be approved ads. This is because Snap has two distinct sets of content policies that govern organic content versus ads content. Organic content is governed by our Community Guidelines, and advertising content is governed by our Advertising Policies. For organic content to successfully be converted into an approved ad, it needs to meet both sets of policies.