I have a flow that is used for auto-numbering. My list has three different content types. I have a custom ID field that is populated by a variable. Each content type has a corresponding prefix [ie Content Type A would have an ID Number that reads A0004. Content Type B would have an ID number that reads B0005 and so forth]. The autonumber capability is held in a variable. In order to get the correct prefix, I have set three conditions based on the content type and concatenate the correct corresponding prefix with the autonumber and then put that result in a variable. I am having difficulty trying to figure out how to Set my custom ID field to the variable value [which is a string].
In the Nintex Workflow I use for OnPrem, it is literally just 'Set field to ___'. We do not have this option in Flow. How do I update my custom ID field to whatever the variable is??