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Luhn Checksum

The Luhn algorithm, also known as the modulus 10 or mod 10 algorithm, is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers and Canadian Social Insurance Numbers. Luhn Checksum lives in the Hashing category of the fx menu.

Parameter

Section titled “Parameter”
ParameterTypeRequiredDefaultDescription
Inputstringyes—Value to transform. Previous step output or a literal.

Input is the primary value (previous step output or a literal).

Returned value

Section titled “Returned value”
TypeDescription
stringResult of the Luhn Checksum transformation.

Limitations

Section titled “Limitations”
  • Wrong key, algorithm options, or malformed input typically raises an evaluation error — fix Input or options before re-running.

Example

Section titled “Example”
Run Luhn Checksum

The Luhn algorithm, also known as the modulus 10 or mod 10 algorithm, is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers and Canadian Social Insurance Numbers. Adjust optional parameters when the defaults do not match your payload.

  1. Set Input to the value to transform (previous step output or a literal).

  2. Confirm Output value shows the transformed result.