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External data lookup variables

  • June 12, 2026
  • 3 replies
  • 39 views

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I have an external data variable that I’m using to populate a repeating section. In order for this to work properly, I need to name the repeating section form controls using the unique identifier names of the related external data variable columns. An example: External data variable column name “Lead (Email)” is unique identifier “Lead_Email”.

External data variables don’t automatically display their columns’ unique identifiers, so I find myself guessing at the unique identifier names. Is there a way to view/display an external variable’s column’s unique identifier?

Best answer by Simon Muntz

Hi ​@Adam,

Firstly, create your External data variable.
Then create a variable that converts the first row to a string.
Example:

Add a label control to the form and insert the variable.
Preview the form.
 

 

3 replies

Simon Muntz
Nintex Partner
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  • Nintex Partner
  • Answer
  • June 14, 2026

Hi ​@Adam,

Firstly, create your External data variable.
Then create a variable that converts the first row to a string.
Example:

Add a label control to the form and insert the variable.
Preview the form.
 

 


MillaZ
Nintex Employee
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  • Nintex Employee
  • June 22, 2026

Hi ​@Adam did this answer your question? 


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  • Author
  • Rookie
  • June 22, 2026

That worked. Thank you. :)