How lock and unlock all locations in data management work?

Hello everyone,

I tried to test Lock and unlock all locations based on this document:

However, when I choose "Lock All Locations" :

Based on that document I sent above, when I run the integration, I should not import, validate, export, or re-run the validation.

But when I tried to test, I can run the integration successfully:

What step did I miss?

Thanks!