> For the complete documentation index, see [llms.txt](https://docs.guardianservice.app/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.guardianservice.app/technical-information/users/standard-registry-users-schemas-and-policies/policies/data-entry-updatability/demo-using-vm0042.md).
# Demo using VM0042
1. First, we will import the VM0042 policy:
2. We will now edit some of the schema fields (Organization Name, contact person, Address,Email) as updatability field and save it.
3. Once the changes are saved, we will now publish the policy:
4. Now, we login as Project Proponent to submit project:
5. Once the project is submitted, we can view document by clicking on "View Document":
6. We would now be able to change the document view to Edit mode if we need to change values of the fields, which were marked as Updatable field:
7. Now, we would be changing the field: Organization name from MYCARBON3 to MYCARBONORG and save it.
8. Once saved, we should be able to see two versions of the documents:
