How can i do this? (Your account is ineligible to switch to the no-cost option.)

[KelvinLwin]

When I change the workspace to personal use, following error is occurring. How can I fix this?

(Your account is ineligible to switch to the no-cost option.)

Domain : ssipharma.net

[KelvinLwin]

https://admin.google.com/ac/billing/legacytransition

[KelvinLwin]

check the error massage.

[KAM]

@KelvinLwin Your website clearly shows the domain is not for personal use.  I imagine you have data in your workspace setup that reflects a corporate entity.  You'll need to look at Business Starter licensing. -KAM