Once a fetch is set up it cannot be edited.
If you wish to make an amendment to an existing fetch, delete it and then re-add it again with the updated details.
To delete an existing fetch, login to the Feefo Administration Portal and go to 'Settings > Data Sources'. There you will see a list of the existing sources similar to the below screenshot:
Click on the 'Delete' button to delete the fetch and then add a new one by clicking on the 'Add Data Source' button in the top right corner of the screen.