Open Menu > API services > Library
Search Data Fusion API
Select Cloud Data Fusion API
Click Enable API
Open Menu > Data Fusion
Click on create an instance
Choose Edition as Basic
In Authorization, click on Grant Permission
The instance will be created. It will create 10-15 minutes.
Click on Instance.
Copy the service account.
Go to IAM & Admin to add permission.
Paste the service account.
Give role as Cloud Data Fusion API service Agent.
NB : Sometimes you may have to give Cloud Data Fusion Admin access also.
The Service account will be saved with the given role.