Enable default course enrollment for bundle

To enable default course enrollment, go to Products > Bundles > Desired Bundle.
Then click the Settings button.
Select the "Permissions" option under Pricing & Permissions by scrolling down.
You can now view the Default Bundle Enrollment option. Click here to choose the option. Then, click the Save button.
Now, your learners will automatically enrol in the specified product when they sign up for their account.
In the same way, you can enable this feature for all of your products, including courses, test series, and mock tests.

If you choose this option, when your learners sign up for their account, they will automatically enrol in the specified bundle.