I have 2 content types which I want an individual ID(unique for each item) for both, how would I go about creating an ID's for this. So each Content type has IDs 1,2,3,... etc. I am thinking the way forward is using calculated values, but not sure how to go about this. Can anyone help?
You cannot modify the ID, so I think you should create a new column (or more). But since you cannot see the ID among the available values in calculated column, you have to use a workflow. In the workflow you can then create a value for your column(s) based on ID and on content type used.