I need to concatenate two columns in SharePoint, and one of them is type person. I saw that is possible to create a workflow (question 218041), but I can't use SharePoint Designer in this site. There is another way, using SharePoint Online?
Only below column types are supported in Calculated column according to Microsoft's article:
- Single line of text
- Date and Time
- Multiple lines of text
- Person or Group
- Hyperlink or Picture
- Custom Columns
So out of the box it's not possible. You may need to to look for the customization using Powershell or jQuery based solutions.