Login to mlab/mongodb first: https://account.mongodb.com/account/login
Then click on "Database" on the left, then 2.
right click "Connect",
then on "Connect with mongodb shell",
and then 4.
copy this between:
"mongodb+srv://" und "/myFirstDabase"
That like e.g. cluster0.7fhhjbf.mongodb.net
is then the Mlab DB Host
You should know the database name, username and password. Otherwise you can also look for them from the Heroku "vars".
Dann die Checkbox bei "Mlab ATLAS" aktivieren, die Ziel-Instance auswählen und speichern.
Then the checkbox at "Mlab ATLAS" activate, select the target instance and save.
If it doesn't work, please get in touch with us using the contact form
. We will then help you with that.