For the Trial account, when querying an export of enwiki - they should receive a monthly export, however it is currently saying it is not available. I tried this same call with non-trial accounts and it worked as expected.

API call:

curl -H "Authorization: Bearer ACCESS_TOKEN" -L https://api.enterprise.wikimedia.com/v1/exports/download/0/enwiki

API returns:

"{"status":404,"message":"Export for 'enwiki' not found!"}"