Missing Nintex Workflow Constants from farm server

Hi yes it is, what I'm saying is that the ones you see in the screenshot are now missing. Dissapeared. Gone. They don't exist anymore. That's a screenshot from the support documentation from back in 2016 when this was set up.

From Central Administration :)

Should also add that I checked under site settings as well to see if they were set at a site level (they weren't.) Accoding to the notes the developer made, seems like he did it at the farm level.

Not sure why they would disappear.
You can try find the root cause for this issue or you could just re-create them.
If you want to find the root cause you may need to contact Nintex Support support@nintex.com to look at the database etc where the constants are stored. If they were deleted it may be hard to find out by whom and when.

We have a DBA, is there a way he can check? If so what steps would he need to follow?

Thanks Simon. He extracted the table for me and all the missing entries are there. You mentioned it could be a permission issue for me not seeing them. I am set as the site colletion administrator (in central admin) so could you point me in the right direction in terms of what elevated permissions I need?

Hi,

The screen shot in your first post shows yellow padlocks next to some of the constants.  This means that the Edit Permissions option was used from the workflow constant page and set to certain users or groups that you are obviosly not apart of and that is why you cannot see them at all. (I tested this functionality).
To find out the groups or users that have access have your DBA query the dbo.WorkflowConstantSecurity table in the Nintex configuration database and this will reveal the users that have access to which constant. An Inner join can be used to show the user(s) and the title of the Workflow Constant.

Example.

SELECT [Username]
       ,I.Title
  FROM [NintexWorkflowDB].[dbo].[WorkflowConstantSecurity]
  Inner Join dbo.WorkflowConstants I
  on WorkflowConstantID = I.ID

HI Simon, just wanted to thank you for your help with this. You were spot on about the reason they weren't appearing for me was because they were locked down to specific accounts. Got my dba to check as per your suggestion and I was able to get the pw for one of the accounts that DID have acces and make the necessary changes. Once again, THANK YOU :)