Create session data

Hi,
I need to create a session data after submit a form.
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How I can do It?
Thanks in advance

What's the prolem?
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Form 1) OnLoad
In the data form I've setting data provier=userdata
​

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Form 1) Submit
Save to session
Name: userdatasession
data provier: userdata
​

​
After redierct form 2
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Form 2
I've tried to insert this code to get session data
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Result:
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Array
(
    [_ga] => GA1.2.874876136.1534868960
    [39b9f21973e1359542f2153ce0ff6723] => 0rq9bvvd6hbjv55dbflq87tcr1
    [23fcbe911405bb6c99236c76563fd1ab] => gpbcibv0v86rmf45ormku9gqk6
    [Itemid] => 155
    [option] => com_chronoforms6
    [view] => form
)

Array
(
)

​
Where is my error?
Thanks in advance
Lele

1) Form data is available in {data:} so put {data:} as the data provider for the save to session action.
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2) PHP should be \GApp::session()->get("session_name", "default value if not found"); (Don't copy paste from the forum - type it out manually.)
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3) you can access session data using shortcodes - so {session:userdatasession} and {session:userdatasession.field}

Thank You Very Much!
More Easy🙂