What should be done before sharing a layer package with external users?

Verifying permissions on shared content is crucial before sharing a layer package with external users to ensure that all users have appropriate access rights to the data included in the package. This process involves checking the user permissions to confirm that external users can view or edit the data as intended. If permissions are not correctly set, external users may face access issues, potentially leading to confusion or frustration when trying to use the shared resource.

Adjusting layer visibility settings is more about the presentation of the data rather than ensuring secure access, while optimizing data storage and connections primarily concerns the efficiency and performance of the data rather than permission aspects. Compressing the geodatabase can reduce its size for easier sharing, but it does not address the critical issue of access rights.