Hmm. Looking at this, it seems we do allow searching of inventory serial numbers. I’m not sure how to test the scenario you describe in this case. All the serials from the inventory table that I searched for appeared ok. Adam. From: observium observium-bounces@observium.org On Behalf Of Andrew Lemin via observium Sent: 10 July 2019 15:52 To: Laszlo Nemeth via observium observium@observium.org Cc: Andrew Lemin AndrewL@4d-dc.com; Michael Yiapatos michael@4d-dc.com Subject: [Observium] Serial Number searches not working properly Hi list, Hope everyone is well 😊 We have been using the serial number search feature a lot recently as part of an audit / support contract renewals. And we have found that when a stack of switches exists, only the first serial number for the first stack member is searchable! When going to the device and selecting the ‘Inventory’ tab, we can see the serial numbers for all stack members. But the search query is not finding these ☹ After discovering this exclusion, we have tested some more and found that the issue also exists for line cards. I.e. only the chassis serial number is searchable, the line card serial numbers in the chassis are not returning the node. Again, the serial numbers for the line cards are being correctly displayed in the Inventory. So at a guess, it seems like the SQL query needs enhancing to include the referential child rows or tables for devices internal components (guessing stack slave members are treated like line cards). Thanks for your thoughts, Cheers Andy.