I have a text type which hold multiple value (NE, SE, MW, NW, SW). i am using be

Can you expand on what you are trying to do? If you know the location of the value you are trying to return in pv!yourArray, you can simply do pv!yourArray[pv!location]. For example, if pv!yourArray={NE,SE,MW,NW,SW} and you want the 2nd value, pv!yourArray[2] will return SE.

If you would like to learn more about the index() function, please see: forum.appian.com/.../Array_Functions

When you hold an array in a text field (As single), the entire data is treated as a single text. For that reason, your array function won't work.

Try storing it in an Text Array.

As Sathya indicates the fact that the index function is returning the same as the input indicates one of two things:

1. Your process variable is not marked as multiple
2. The content of the variable is not an array but a single text
---> 2.1 This is how a text array is provided ={"NE", "SE","MW", "NW", "SW"}
---->2.1 Or if passed through the UI
NE; SE,MW, NW; SW

You can actually prove this theory by using the split function:

=index(split(pv!selectedCustomerIdentifier,";"),2,1)

or, if the values are coma separated:

=index(split(pv!selectedCustomerIdentifier,","),2,1)