(AzureCXP) MicrosoftDocs/azure-docs#86469

Point 3 in explanation updated which explains of how actually Until works. Below is the updated version of it.
"If the expression evaluates to false, the Until activity will execute all its child activities again. When it evaluates to true, the Until activity will complete."

Author: ShaikMaheer-MSFT

articles/data-factory/control-flow-until-activity.md

@@ -26,7 +26,7 @@ To use an Until activity in a pipeline, complete the following steps:
 
    :::image type="content" source="media/control-flow-until-activity/until-activity.png" alt-text="Shows the Settings tab of the Until activity in the pipeline canvas.":::
 
-1. Enter an expression that will be evaluated after all child activities defined in the Until activity are executed.  If the expression evaluates to true, the Until activity will execute all its child activities again.  When it evaluates to false, the Until activity will complete.  The expression can be a literal string expression, or any combination of dynamic [expressions, functions](control-flow-expression-language-functions.md), [system variables](control-flow-system-variables.md), or [outputs from other activities](how-to-expression-language-functions.md#examples-of-using-parameters-in-expressions).  The example below checks the value of a previously defined pipeline array variable called TestVariable to see if it evaluates to ['done'].
+1. Enter an expression that will be evaluated after all child activities defined in the Until activity are executed.  If the expression evaluates to false, the Until activity will execute all its child activities again.  When it evaluates to true, the Until activity will complete.  The expression can be a literal string expression, or any combination of dynamic [expressions, functions](control-flow-expression-language-functions.md), [system variables](control-flow-system-variables.md), or [outputs from other activities](how-to-expression-language-functions.md#examples-of-using-parameters-in-expressions).  The example below checks the value of a previously defined pipeline array variable called TestVariable to see if it evaluates to ['done'].
 
    :::image type="content" source="media/control-flow-until-activity/dynamic-content-to-check-variable-value.png" alt-text="Shows the  Add dynamic content  pane with an expression to check a variable for a defined value.":::