For every item generated in Labguru, a unique identifier will automatically be created by the system. For inventory items, this identifier is referred to as the SysID.

The SysID is composed of 2 letters, representing the name of the collection (for example, for plasmids, the 2 first characters in the SysID will be "PL"), followed by a dash. Next, a number that will represent the year in which the item was created (For example for the year 2021, we will have "21"), a dot, and finally the serial number, that represents the number of the item that was created that year (for the 16th item we will have "0016"). So finally, the SysID from the example will look like "PL-21.0016".
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Since SysID is generated by the system, it cannot be edited, created by users or deleted.

When updating items using the export/import function of Labguru, you must specify the item's SysID, in order for the system to know it should update this item, and not create a new one.