First you need to make sure you have a Data Group, Data Set, and Data Pool created in Datamaker for the Project you are trying to save to. Follow the steps in this documentation on how to create a project: https://docops.ca.com/ca-test-data-manager/4-1/en/provisioning-test-data/configure-test-data-reservation-service/configure-form-based-test-data-reservation-service/test-matching-and-re-matching/create-project-in-datamaker
Right click on your Data Pool (or whichever group you are saving your flows to) and choose the 'Properties' option.
In your 'Edit' window, do the following:
- Check the box for 'Available on demand'
- Under the 'Type' dropdown, choose the 'Agile Designer' option.
- Click the Save icon to save your changes.
Once this has been done in Datamaker, you will be able to see the hierarchy in ARD and be able to access/save to without error.
In Agile Designer, try to save your flow to Datamaker again. You should see the Data Group/Set/Pool and be able to save successfully.