Have the possibility to update a Sharepoint item if it already exists, or create it if it does not.

Have the possibility to update a Sharepoint item if it already exists, or create it if it does not. 2 Ideas: 1. The "Retrieve an item" action could indicate whether the item already exists or not using an output variable. Then, we could use the "Create an Item" or "Update Items" actions depending on the result. 2. The "Update Items" action can have a checkbox that allows creating the item if it does not exist.