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CUSTOMDATA DAX Function (Information)

Returns the value of the CustomData connection string property if defined; otherwise, BLANK().



This expression has no parameters.

Return values

Scalar A single string value.

The content of the CustomData property in the connection string.
Blank, if CustomData property was not defined at connection time.


This function is commonly used implementing expressions for role based security when an application uses custom authentication.

Last update: Oct 26, 2020   » Contribute   » Show contributors

Contributors: Alberto Ferrari, Marco Russo, Kenneth Barber

MSDN documentation:

Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

Row Context

This expression is executed in a Row Context. Click to read more.


Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

Not recommended

The use of this parameter is not recommended.


This function is deprecated. Jump to the Alternatives section to see the function to use.


This parameter is deprecated and its use is not recommended.


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