Post-sale messaging is the tool that allows sellers to start private communication with buyers after the sale is made. To achieve a better experience via API, sellers will be able initiate contact choosing a reason, and then create, send and consult the pack messages (having one or various orders). Thus, you will reduce the operational load and avoid automatic communications. See more about after-sales service with messages.
In addition, we share the following flow to better understand how to send an after-sales message:
The buyer can always communicate with the seller and the seller can respond normally, without having to choose a reason.