Custom field minimum xx characters

[Marco]

Hi there,

is there a way (without any paid addons) to set a minimum of entered characters for this field? I can only find posts regarding the maximum numbers of characters. 

For example the project has a free text field called reason and the reason you enter there should be at least 20 characters.

[Fabian Lim · Accepted solution]

Hi @Marco

You can probably use the regular expressions validator which is out of the box.  Here are some instructions: https://confluence.atlassian.com/jirakb/using-workflow-regular-expression-check-validator-to-restrict-text-field-in-number-format-859509784.html

There is a section for minimum.

Regards,

Fabian

[Marco]

Thank you @Fabian Lim that worked.  In the End I used the expression 

[\s\S]{20,}

 for all characters and at least 20 characters with no maximum limit. 

The website regex101 was also quite helpful to get the right expression