These required API keys are randomly generated thru ShipStation to automatically link your ShipStation and Seller Store on ReCapturit.com. This lets customers see parcel rates and decide which shipping service works best for them and their timeline.
To make sure you have linked ShipStation with your ReCapturit Seller store log into your Seller Dashboard
On the left hand side scroll down to "Manage Shipping"
If the "Shipping API Key" and/or "Secret Shipping API Key" are blank log into ShipStation by clicking this link.
In ShipStation click on "Settings"
Then "API Settings" and press the blue "Generate API Keys"
Copy and paste the "API Key" and "API Secret" into the corresponding fields from manage shipping in your seller dashboard.
Lock all that in by pressing "Save Changes" and you are all set!