One of our employees wants to have a column in his list that autoincrement from 100,000. I tried to use "ID" column, then create a "calculated" column that adds 100,000. That didn't help; id populates after item is generated. Then I found an article telling me to use sharepoint workflow. But I can't seem to find where it is. The article also suggests to use Sharepoint Designer, but that thing hasn't been upgraded since 2013.
Does anyone know how to generate a column like this?