How to Receive Buyer Message Notifications and Send Replies via Messaging API?

[TSLdob]

I’m trying to implement a feature to:

Receive real-time notifications when buyers send messages (e.g., through Notifications API).

Programmatically reply to those messages using the Messaging API.

However, I’ve encountered two key limitations:

The Messaging API documentation explicitly states it cannot be used to reply to buyer-initiated messages, only to send proactive messages (e.g., order updates).

The Notifications API event types don’t seem to include a direct subscription for buyer messages (e.g., no MESSAGE_RECEIVED event).

Questions:

Is there a workaround to detect buyer messages (e.g., via Reports API, undocumented endpoints, or polling Seller Central)?

Are there plans to support buyer message replies in future API versions?

Has anyone successfully implemented this functionality? If so, what approach did you use?

Any guidance or shared experiences would be greatly appreciated!

[saleweaver]

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