To track and be notified about the expiration date of samples or chemicals stored in the lab inventory, you can enable the expiration date in the sample type template. Navigate to Sample Types under configuration to set the Expiration Date field to enabled.

Once the Expiration Date field has been enabled, the option to set the expiration date is now present when adding a sample. 

In the Advanced Search you can find samples by expiration date. In the Expiration Date tab, you can set the conditions find items in the inventory that will expire or already have been expired.

Use the Save Search function to store your search and create a quick-search option in the menu to periodically list items of which the expiration date has passed. Note that it is currently not yet possible to be notified automatically when the expiry date has passed.