400 error from /messages API when POSTing adaptive cards

[Raffaele Lagana]

hi.. we are trying to send message to a webex support channel via Java.. we are getting 400 from POST https://api.ciscospark.com/v1/messages.. We are using Adaptive cards in the message.. It fails only when the no of elements is more than 15.. is there any documentation for the above api

[Raffaele Lagana]

I'm not sure what you mean when you say 'it fails when number of elements is more than 15', what elements exactly are you referring to?
Can you provide the JSON request for this?

Docs on adaptive cards and the /messages API can be found here:
- https://developer.webex.com/docs/buttons-and-cards

- https://developer.webex.com/docs/api/v1/messages