In this article I will explain how to build a Facebook Messenger Bot that engages with friends and fans to send them messages. First, we will get a simple message to an account in Messenger. Next, we will post a notification to all friends with the subject 'Message to '. Then we will send a request to a friend to 'tell all about his/her day' – again, in the title.

When you visit the link below, it is guaranteed to work in the public messenger. However, for private messages, you should subscribe to their private messaging account.

Also, if you want to build a Messenger Bot which sends you notes from friends, then you can build a Notes Bot. This is possible because of the Messenger Bot features. For example, in your private message to a friend, the bot will post the sender's name and the email address on the screen so the friend can reply and help you with their thoughts.

When someone submits a message to a message board or comments on another person's comment, the bot will do the following. First, it will post a notification to the friend who sent the message – if the friends are not public, it will post a notification to all friends – and when a notification is posted to all friends, the bot will send a message to everyone and share a link that will lead to the link that was posted.

If you have built your own bot or bought one, then you can go to the Facebook site and build your bot from scratch. There you will find thousands of pre-made bots, all ready to be integrated into your account. All you need to do is to edit the software and make changes to add details such as a friend, a message to a friend and who should send a notification to who.

However, there are some limitations on your application requirements and this is a big drawback. After all, if you did not follow the guide carefully, your bot may not work properly. The limitations include:

You may only purchase your bot using a money card called 'Digital Gifts' that is only available for payments made with PayPal. The rules and regulations of the organization are clearly spelled out here. You can still use the "Custom Free Plan" if you choose. Nevertheless, you should keep in mind that they do not allow sending mail from mobile phones, including email.

Message tracking is only possible when you buy a plan called 'Message Managers'. The rules and regulations are laid out here. You should keep in mind that message management will only work when your users are connected. You can always develop your bot without any rules.

Messages will be deleted as soon as they are opened or when the 'Read Receipts' setting is turned off. The rules and regulations are clearly stated here. The full details are provided.

There is an option for messages to be posted later. In most cases, your messages will not be deleted even if they are opened. The rules and regulations are spelled out here.

Bots in general have more restrictions than user accounts. However, Facebook has set the limit at 3 bots per account per month. In order to gain a balance between user account limitations and the limits of bots, you should not exceed these limits.

To sum up, Facebook Messenger Bot applications are not free. They will require a certain level of investment.