Custom record field

Question

I want to create a custom record field that converts a string timestamp field to date or datetime just to use it in user filters. I chose the real-time option but it seems something is wrong with that because when I tried with sync-time evaluation it works. This is the code: 
 datetime( left(ri!stringTimestamp, 4), mid(ri!stringTimestamp, 6, 2), mid(ri!stringTimestamp, 9, 2)) 
 instead of ri!stringTimestamp I am using the respective record field

Soma · Answer

That is one of the limitation in writing your own expression that evaluates in real time. There are only limited custom functions available.

Stefan Helzle · Answer

The documentation has all the info and examples: https://docs.appian.com/suite/help/24.3/custom-record-fields.html