Generate fixed digit number

The Generate fixed digit number masking activity allows you to generate a number with a specific number of digits.

Table of contents


To use the Generate fixed digit number masking activity, it must be placed inside a table masking activity or a similar activity that iterates over data. Once placed, select the property you want to mask. Generating a fixed-digit number requires you to enter a number of digits that a generated number should have.

Additionally, you can set the EnforceUnique property to make sure every generated number is unique. This option must be used with care so that the number of table records is not greater than the possible numbers in the desired range.


In this example we want to generate a phone number that is a 8-digits number. First we place the Customer masking activity into opened Package.xaml and put the Generate fixed digit number masking activity within it. Once placed, we select the Phone property that we want to mask with generated numbers. We enter 8 as the number of digits, and we leave other properties as they are.

Generating fixed digits numbers Figure 1: Generating fixed-digit number


Property group Property name Description Example
Input properties DataItemProperty The property to mask. Choose property from the dropdown list
NumberOfDigits Number of digits to generate. 8
Input: Filter Filter Expression used for filtering records - only filtered items will be masked. x => x.Phone.IsBetween(100, 999)
RepeatingKey Key to use for repeating detection. Write x => CompositeKey.Create(x.Phone) or choose properties from the pop-up window
Misc DisplayName Display name of the activity in the workflow. Generate number range