Hi Pega Community, For one of our applications, we are using Pega 25.1 with constellation. In this application, We have implemented search and select functionality. There are few input fields for this and the search is configured with a list data page which has connector as a source to call a REST…

Hi, From my understanding, this is expected in Constellation. Messages added in the data page (response data transform) won’t show on the UI because Constellation only renders messages that come from the case layer (flow actions/assignments), not directly from data pages or connectors. You can re…

Thank you @PoojaPalla for the response. Flow action level validation and post processing works. However, The requirement is to display the web server response, even before submitting the flow action, when we receive the response from the web service call. Also, when we map the value to a case prop…

Hello @shanmukharaos , I personally have not tried this scenario yet, but i found few articles related to this for your reference [image] Custom Form Validation for Search and Select Knowledge Share User Guide for Custom Validation for Search and Select …

Hi @shanmukharaos I tried the same scenario and setup some error message in the response data transform of the data page where the external rest api is called and i am able to see the error message on the UI as shown below, [image] [image] And as per the post shared by Marie, i am seeing an ad…

Validation messages while using Search and Select

General

JayachandraSiddipeta (Jayachandra Siddipeta) April 21, 2026, 8:49am 4

Hello @shanmukharaos,

I personally have not tried this scenario yet, but i found few articles related to this for your reference

Will let you know once i have some information.

Regards

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Validation messages while using Search and Select

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