Hide the form based on permissions in nintex form

'if employee is not equal to current user and if employee is not part of a SharePoint group(this will be Approvers), should redirect to different page'

when exactly do you want the redirect to happen?

after form submit? or do you want to forbid access to a item/document once it is submitted?

and where do you want to happen it, list or library?

no one should have the access, once the form is submitted other than the Approver and current user

that's a bit confusing.

everyone authenticated by sharepoint is being treated as 'Current user'.

whom do you mean by current user?

I want to restrict access to users, trying to view/edit other items which are not created by them. So I want the user to redirect to different page or give some error 'you do not have access to this item'. 

hmm, do you really need a redirect?

exactly that what you ask for can be configured in list settings. wouldn't that be an option for you?

if you configure it this way, users will even not know about existence of other items created by other users.

To be more simple I have added a panel on nintex form and I want to hide the panel when, if the current logged in user is not equal to the employee name on the form or part of a particular SharePoint group.

this can be achieved with formatting rule.

if I got you description right, then formula like following should satisfy it.

or(not(userEquals(Current User,UserNameNamedControl)), not(fn-IsMemberOfGroup("SP.TESTGroup")))‍

take care of correct configuration of respective references!

ok, I see.

there is no such functionality that would decide (redirect) what form/page to open based on who actually opens it.

if you want to restrict access to certain items to only certain users/group you have to configure item level permissions accordingly. so you will need to break existing/inherited permission and grant permission only to creator and approver.

you can maintain it manually or you can do it from workflow - see Set Item Permission workflow action.

reg. formula to hide panel:

does it throws any error or does it just logically work incorrectly?

I'm not sure whether I correctly understood you description

I want to hide the panel when, if the current logged in user is not equal to the employee name on the form or part of a particular SharePoint group.

I uderstood it as:

panel has to be hidden when (the current logged in user is not equal to the employee in a form control) OR (the current logged in user is not member of a particular SharePoint group)

so the panel should only when current user is  group member AND it is as well select employess in form control.

let me know if my understanding is wrong.

it looks like you have some syntactical error on a form and string "fn-IsMemberOfGroup" is not recognized as function name but as math expression.

check whether you do not miss or do not have one more parenthesis, quote, comma, etc. (note the problem need not be in this specific formula)

you might as well look on developer console what errors it reports.

you have a typo in function name (doubled 'u')

check developer console what errors are reported there.

if you are not able to resolve them on your own, post a screenshot here, plus post few lines of code where each error points to.

add few calculated value controls on the form, one for each formula of following

CurrentUser

CurrentUserLogin

userEquals(CurrentUser,CurrentUserLogin)

not(userEquals(CurrentUser,CurrentUserLogin))

fn-IsMemberOfGroup('HR Approvers')

not(fn-IsMemberOfGroup('HR Approvers'))

or(not(userEquals(CurrentUser,CurrentUserLogin)),fn-IsMemberOfGroup('HR Approvers'))

do type in functions manually, select them within builder from function list!

(for fn-IsMemberOfGroup copy it over from some inline formula)

you have changed your requirement a bit, but that's great you come to the solution.

please select a correct answer.