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Manuel T Gomes

Automation Expert and Software Engineer

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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: skip Function

Power Automate: skip Function

5 min read · 2 months ago

Removes a given number of items from the front of an array.

Power Automate: sort Function

Power Automate: sort Function

4 min read · 3 months ago

Sorts an array in ascending order by value or property.

Power Automate: reverse Function

Power Automate: reverse Function

3 min read · 3 months ago

Reverses the order of items in an array.

Power Automate: base64 function

Power Automate: base64 function

4 min read · 5 months ago

Encodes a string for safe system-to-system transfer. Adds 33% size overhead.

Power Automate: dayOfYear function

Power Automate: dayOfYear function

5 min read · 1 year ago

Returns 1-366 for any date.

Power Automate: coalesce function

Power Automate: coalesce function

6 min read · 1 year ago

Returns the first non-null value from a list. Null if all are null.

Power Automate: max function

Power Automate: max function

4 min read · 1 year ago

Returns the highest value from numbers or arrays. Type mismatches break it silently.

Power Automate: mod function

Power Automate: mod function

6 min read · 1 year ago

Returns the remainder of a division.

Power Automate: dateDifference function

Power Automate: dateDifference function

10 min read · 1 year ago

Returns days.hours:minutes:seconds between two dates as a string.

Power Automate: workflow Function

Power Automate: workflow Function

7 min read · 1 year ago

Returns the running Flow's name, ID, region, and run details at runtime.

Power Automate: rand function

Power Automate: rand function

4 min read · 3 years ago

Returns a random integer within a range. Negative numbers supported; no floats.

Power Automate: xpath function

Power Automate: xpath function

14 min read · 3 years ago

Parses an XML document to extract nodes, attributes, and counts. Input must be XML type.

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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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