Open a package to review it. We suggest a license when the imported file or package prefill supplies a real expression, but you confirm the real one from the catalog. Detection is a hint, not a guarantee.
Most permissive licenses (MIT, BSD, Apache-2.0) require you to preserve the license text and copyright notice. When a license requires this, SourceTrust fetches the text for you, and you paste it in the License text box when we could not. That text is what appears on your public page.
Changing a license that was already confirmed opens a warning. Prefer Cancel unless you are correcting a mistake. When the publisher and the license file disagree, you choose between their two licenses under License. On an approved or parked package, or when the change would remove a text you wrote, it asks once more, without the warning. A license that neither of them names keeps the warning, and the dialog says it is neither of them. If you are unsure, use Get in contact to open Support in a new tab without leaving the package.