Data Prep - Mapping of ECID to freeform data (data.__adobe.analytics.eVarX) Hi guys, quick question about data prep mapping in a datastream. Is it actually only possible to map incoming data to the XDM schema, but not to enrich the free-form "data" object with additional information?Example: I want to set a value to the "data.__adobe.analytics.eVarX" to the ECID? When I try to map the ECID (screenshot), the autocomplete does not work, and hardcoded also does not work. So, do you know why none of the contextual free-form data cannot be accessed in the mapping?Alternatively, I think there is also no direct access to the ECID on AA processing rule side, correct? Ideally, I would like to avoid using getIdentity for it due to its async nature.alloy("getIdentity") Any suggestions? Cheers