The answer to this question is a little complicated. Generally, you do not need a license to engage in recreational activities, such as playing bingo, on social media platforms like Facebook.
However, there are certain regulations that may apply depending on the state in which you reside.
If you are in the United States, for example, you may need a license from the state lottery commission in order to operate a gambling business online. In some cases, you may also need to comply with other regulations, such as rules prohibiting children from participating in gambling activities.
If you are not located in the United States, it is likely that there are no specific regulations governing bingo games on social media. In this case, it is up to the individual platform operator to decide whether or not they want to allow bingo games on their platform.
Some social media platforms may be more lenient than others in terms of permitting bingo games.