If you want to join data together from more than one column in OpenGround Cloud then you can use the "+" function.
The following expression joins the sample type together with the sample reference.
[SampleInformation.Type] + [SampleInformation.SampleReference]
If the two columns are in a number format, then the system would do a mathematical addition. Therefore, text would need to be inserted between the two values. See the section on Adding text to fields for more information.