Hi Matias,

I think you could use a combination of an Action Flow and the Intelligence API of Celonis, in order to use the buttom from your dashboard to activate the Action Flow and with help of the Intelligence API push the data into your external URL.

To implement the buttom to activate the Action Flow from your dashboard you could use an Action , here is the documentation https://docs.celonis.com/en/knowledge-model---actions.html

To use the Intelligence API you could see the developer documentation: https://developer.celonis.com/intelligence-api/about/

Hope it helps