[Responsys CX App] Metadata do not response

Hi Support,

We want to get metadata by call postMessage:

{
  amsAction: 'metadata'
}

In the browser log, we can see the AMS log but nothing reponse:

Could you please let me know if there is missing in configuration?

For your information: the post message to save configuration still work fine.

Thank you so much,

Cuong Tran