Home » DAX » DAX – SUBSTITUTE Function



Replaces existing text with new text in a text string. It comes under Text functions DAX category.


SUBSTITUTE(<text>, <old_text>, <new_text>, <instance_num>)


S no. Parameter Description
1 text The text in which you want to substitute characters, or a reference to a column containing text.
2 old_text The existing text that you want to replace.
3 new_text The text you want to replace old_text with.
4 instance_num (optional) The occurrence of old_text you want to replace. If omitted, every instance of old_text is replaced


  • It is case-sensitive. If case does not match between text and old_text, SUBSTITUTE will not replace the text.
  • This function is not supported for use in Direct Query mode when used in calculated columns or row-level security (RLS) rules.

So, Let’s start with an example,  you can download the sample Dataset from below link-

Step-1: Create a calculated column, right click to dataset name > select New column

Step-2: Now replace existing “&” text with “and” in column “Product Sub-Category”.

Substitute = SUBSTITUTE(Orders[Product Sub-Category], "&", "and")

Step-3: Drag new column to Table visual


So you can see the output of substitute DAX as in above image, it replace “&” text with “and”.

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