Troubleshooting install and upgrade issues

(For upgrade only) You cannot install a managed package on a sandbox organization when you click the URL of the installation link.

When you install a managed package on a sandbox organization, you must update the URL of the installation link by replacing login.salesforce.com with test.salesforce.com.

Example

Before the update, the following installation link is displayed:
https://login.salesforce.com/?startURL=%2Fpackaging%2FinstallPackage.apexp%3Fp0%3D04tA0000000Emuu

After the update, the following installation link is displayed:
https://test.salesforce.com/?startURL=%2Fpackaging%2FinstallPackage.apexp%3Fp0%3D04tA0000000Emuu

(For upgrade only) If Self Service is configured on a sandbox, you cannot access Self Service from a mobile device.

Not applicable

(For install and upgrade) After install or upgrade, clients are unable to view files attached to records.

You must disable a Salesforce setting to enable clients to view files attached to records:

1. Navigate to Setup > Customize > Salesforce Files > Settings > General Settings.
2. Click Edit.
3. Clear the Files uploaded to the Attachments related list on records are uploaded as Salesforce Files, not as attachments check box.
4. Click Save.

Note: Files uploaded prior to enabling this setting are unaffected by this change. However, if you have uploaded any files while this setting was enabled, the clients cannot view these files.