Cannot import config: d7_webform extension will not be installed after import

Strange thing: just tried to import config through the UI (by copy/pasting the exact same config) and this works.

Turns out I had to rename the files from d7_webform.yml to migrate_plus.migration.d7_webform.yml.

It solved the issue in my case.

This worked for me as well. I think this is at least a documentation issue. I'm not sure if the developers mean for it to work this way, or if the files in the module should be renamed.

In the 2.x version the the yml files are also not in the migration_templates folder anymore, the folder is just called migrations.