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Manuel T Gomes

Automation Expert and Software Engineer

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CATEGORY

Power Automate Function Reference

Power Automate expressions are where a lot of the real magic happens, and this is my reference for the functions that power them. When the point-and-click designer runs out of road, a well-placed expression gets you exactly what you need. I document the everyday date and time helpers like the "addDays" function, the "addHours" function, and the "addMinutes" function, along with the more flexible "addToTime" function for shifting timestamps. I cover math with the "add" function, logic with the "and" function, and data shaping with the "addProperty" function and the "array" function. Need to convert data types? The "base64ToBinary" function gets its own walkthrough, and the "action" and "actions" functions let you reach into earlier steps. Every entry gives you the syntax, the parameters, the return value, a practical example, and the edge cases that catch people out.

Power Automate: startOfDay function

Power Automate: startOfDay function

5 min read · 3 years ago

Resets a timestamp to midnight.

Power Automate: last function

Power Automate: last function

3 min read · 4 years ago

Returns the last element of an array or the last character of a string.

Power Automate: Outputs function

Power Automate: Outputs function

3 min read · 4 years ago

Returns an action's full results inside an expression. The mechanism behind Dynamic Content.

Power Automate: Variables function

Power Automate: Variables function

2 min read · 4 years ago

Returns the current value of a variable.

Power Automate: uriHost function

Power Automate: uriHost function

3 min read · 4 years ago

Returns the domain name from a URL. Strips protocol, path, and query string.

Power Automate: nthIndexOf function

Power Automate: nthIndexOf function

3 min read · 4 years ago

Returns the position of the Nth occurrence of a substring. -1 if not found.

Power Automate: formatNumber function

Power Automate: formatNumber function

11 min read · 4 years ago

Converts a number to currency, percentage, or a custom format with locale support.

Power Automate: triggerBody function

Power Automate: triggerBody function

8 min read · 4 years ago

Returns the trigger's body as JSON. Use ?['key'] to reach a single value.

Power Automate: guid function

Power Automate: guid function

7 min read · 4 years ago

Generates a unique hexadecimal identifier.

Power Automate: not function

Power Automate: not function

5 min read · 4 years ago

Negates a boolean value. Strict boolean input required.

Power Automate: startsWith function

Power Automate: startsWith function

3 min read · 4 years ago

Checks if a string begins with specific text. Case-insensitive, space-sensitive.

Power Automate: float function

Power Automate: float function

2 min read · 4 years ago

Converts strings and integers to floating-point numbers.

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Manuel T Gomes

Helping teams and developers plan, build, and automate, and sharing what I learn along the way.

No ads. No third-party trackers. Written by a human.

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