A Delivery Checkout access key is used when you wish to activate Shipmondo's Delivery Checkout on your webshop.
Go to your Shipmondo account and then to Settings > Integration > Delivery Checkout access, and click on Generate key.
Copy the Delivery Checkout key that's just been created and insert it in the your Delivery Checkout setup on your webshop.
Identification key
If you want to set up Klarna Shipping Assistant with Shipmondo, then you will need the identifier key in addition to the Delivery Checkout access key. The identifier key can be found right under the Delivery Checkout access key.