Creating random codes for custom program member fields in smart lists

[WolframLotz]

Hi everyone, 
I like to create a random passcode for program members (a non sensible one 😉 ). 
This code should be created by a smart list and should be saved in a custom program member field. 

I already know how I can create such codes using velocity and email scripting but it seems as if I can't use scripts to set new field values within a smart list (static tokens are usable). 

Do you have an idea if this is possible? 
Do you have an idea how?

Bes regards 
Wolfram

[SanfordWhiteman]

What exactly do you want to do with these codes? Please be specific so we don’t have an XY Problem.

[WolframLotz]

Hi @SanfordWhiteman 
I want to create them triggered or as part of a smart list flow. 
I want to store them in a custom program member data field. 
I want to request and include them into my assets and functions like every other custom program member data. 

Kind Regards
Wolfram

[SanfordWhiteman]

I mean the business case for the codes: how they will be used and validated in practice.

An XY Problem is when somebody asks about a very specific technical implementation that is believed to be appropriate — when what’s really needed is a set of requirements, which may or may not be best met by that implementation.

You will not be able to save random codes into PMCFs without a webhook-powered service. Hence I wonder if that’s really what you need for your business case.