Conversation
Vodafone
IN
Last activity: 22 Jan 2026 3:16 EST
Pega Constellation - CURD Operations from Landing Page
Hi all, we have one requirement when end user adding/creating record from landing page, on the process of creating record where it requires some mathematical calculations like finding total amount (Quantity * each item cost).
one way we can use declare expression to calculate total amount. any other alternative way to achieve this from landing pages?
Pegasystems Inc.
CA
Another option to consider - https://support.pega.com/conversations/user-experience/pre-%26amp%3B-po…
Novitates
IN
Create custom Action for your data class, where you can utilize below features for your mathematical calculations,
- Form refresh setting on scalar fields in flow action
- Pre and Post processing DT/activity options where you can write your custom logic
Please note that this custom action is only applicable only for editing the existing records. For create scenario, pega will utilize the view type behaviour.
If you want the same behaviour while creating the records, then
- For pre-processing, you can utilize the pyDefault DT
- For post-processing, you can utilize the Data Transform in data save options in the savable data page of your data class. Just before the save you can do any modifications and they will be persisted.
If you opt to use the same post-processing DT for both create and delete scenarios, then make sure you have a flag setup for edit scenario and utilize the negation to identify the create scenario.
Hope this helps
Regards
JC