Hi @NotFranmax,
You are on the right track. You should update your “local” object “ListItem” by using assign activity. For example, ListItem.Fields(0).Value = “Updated ListItem Value” in an assign activity to update its value.
However, at this point, your changes are still “local” and not on the SharePoint. This is where you use the Update List Item activity to “commit” the changes to the SharePoint list.
Please see attached file for sample workflow. Let me know if you have any questions.
UpdateSharepointList.xaml (12.7 KB)