Just like WhatsApp, using the integration with Facebook Messenger has a variable login cost, which will be added to the plan you have contracted with Zenvia Conversion.
Why are Zenvia Conversion sessions used?
Facebook's API service brings a lot of benefits to business. Among them, the main one, is that the API allows companies to enhance the attention of queries through complementary tools, such as Zenvia Conversion.
When you use the Zenvia Conversion integration with Facebook Messenger you are using the official Facebook API. As the API is commonly used by companies that can generate thousands of interactions, Facebook placed certain rules to prevent misuse of the application.
To structure this rule, Facebook created the concept of "Session". As this is a Facebook rule, everyone who is authorized to use the API, including our competitors, charges for submitting the templates needed to sign in.
This cost will be $0.01 for each session initiated, either by the client or one of your advisors.
What is a Facebook Messenger "Session"?
A message session starts when a contact sends a message to your business or an advisor sends a template, and ends 7 days from the last message received. Within that period the sending and receiving of messages is free of charge.
When you don't receive a response from the customer for 7 days, you can no longer send them messages again. To reactivate the session, it is necessary to send a template or for the client to send a new message, which will start, in both cases, a new session with its respective cost of 0.01 USD.
It is important to be clear that it is not charged per message, it is done per session.