display cost center field in requested item table from request form

[Deepika43]

on my requirement i created one field name 'cost center' and it should display in requested item list view. Here the cost center value is empty like this below image.

But this value should get from request form front end like

Here I need to display this value according to user change cost center value also change so need to display this cost center field in request item table.

can please suggest how to achieve this

[Deepika43]

this is the workflow

[Shruti]

Then use a run script activity

current.<name of cost center field on request item> = current.variables.<name of cost center variable>  

current.update();

[Deepika43]

this is not working 

[Shruti]

please share screenshot of your flow and script

[Deepika43]

this is the screenshot of workflow in attachement