1. Clear.  A clear disclosure could be as simple as "(paid link)", "#ad", or "#CommissionsEarned".
2. Conspicuous.  It should be placed near any affiliate link or product review in a location that customers will notice easily.  They shouldn't have to hunt for it.          

Associates should also consider the relevant social media platform's guidelines.  For example, Associates may use Facebook's Branded Content tool.

It is important to remember that the disclosure must be made in the medium in which the recommendation was provided (for example, if you are recommending a product in an Alexa skill and your product recommendation utilizes voice, then the disclosure must be in voice, if it is in text, then the disclosure must be in text, and if it utilizes both, then the disclosure must be in both mediums).  In addition, for Alexa skills, this disclosure must be made each time a customer re-engages with your Alexa skill that contains an Alexa Shopping Action that has been tagged with your Associate ID, and should be made as close as possible in time to when your Alexa skill prompts customers to engage with an Alexa Shopping Action that has been tagged with your Associate ID.  It is not sufficient to merely add this disclosure to the details page of your Alexa skill.  

To read more about FTC Endorsement Guides, visit https://www.ftc.gov/tips-advice/business-center/guidance/ftcs-endorsement-guides-what-people-are-asking#affiliate.  You can also find more guidance in the FTC’s Disclosures 101 for Social Media Influencers.