Can the deviceID in a CommCare form submission be used to trace details about the submitting device

The export tool can't export users, groups or organisations (locations) but you could use a mapping table to lookup the location or supervisor info based on the user_id.

You could do this by adding a Mappings sheet to your export query that contains the lookup table.

Here is an example of what your query sheet might look like:

We've defined two fields, Location and Supervisor which both reference user_id. We've also added a Mappings sheet as follows:

For each user_id value we have mapped them to the Location and the Supervisor.

When the export is run it will do the lookups the final export will contain the mapped values.

To get the data for the Mappings sheet you can use the user export and organisations (locations) export from CommCare HQ.

Archiving any form causes CommCareHQ to rebuild any cases affected as if that form had never been submitted. So, if you archive a registration form, it actually un-opens that case and it's like that case never existed.

Archiving a registration form when there are follow-up forms submitted can therefore cause problems, as it leaves a bunch of forms that are applied to a case that never existed.

There is a new change to CommCareHQ which should no longer allow you to archive a registration form when other forms exist for that case, thus preventing the problems described above. Now, if you want to delete a case, you have two options:

1. Archive all follow-up forms and then archive the registration form. This will also delete all of the form data.
2. Assign that case to a temporary user (say username Delete). Then delete user Delete. This will delete the case but not the form data.

Disclaimer: Always be very careful about deleting any data off of CommCare. It is not always possible to recover data if you delete something accidentally.