Recommendation and details for MID Server user and soap.guest userIssue Recommendation and details for MID Server user and soap.guest user.ReleaseAnyCauseA customer asked for recommendations and details for having these users. And if the user can be deactivated.ResolutionThe MID Server userMID Server user is being used for the mid server. As you can see in the below record for the field 'Logged in user'https://docs.servicenow.com/bundle/sandiego-servicenow-platform/page/product/mid-server/task/t_SetupMIDServerRole.htmlDeleting this user or making it inactive will have issues with mid-server authentication and mid-server will go down.The soap.guest userBy default soap.guest user is used to run inbound SOAP requests to the instance when the "Require basic authorization for incoming SOAP requests" is UNCHECKED in the Web Services -> Properties screen, see screenshot. You can see that soap.guest is set for the field "If unauthenticated, SOAP requests will execute on behalf of this user ID. Set roles for this user and use ACL to manage this user's access.", again this is by default.There really is no reason for the customer to do anything with this user as long as they have "Require basic authorization for incoming SOAP requests" checked. When this is checked this means the soap.guest user will never be used by the system for inbound SOAP calls since a different user will be required to authenticate for inbound SOAP calls. In this scenario, the soap.guest user would need to be active.There is no requirement to have a password set for this user, though one may be set for it if desired. But again I would not do this since we do not recommend customers use the soap.guest user for any authentication scenarios. Again, by default the use of the soap.guest will only come into play when "Require basic authorization for incoming SOAP requests" is unchecked. I would not use the soap.guest user for any SOAP authentications by SOAP clients explicitly. Related LinksOnce "Require basic authorization for incoming SOAP requests" is enabled. The soap.guest user account can be deactivated.