Unable to display custom declarative action in Service operations workspace

[SujaniC]

Hi everyone,

I’m trying to add a custom Related List Declarative Action in Service Operations Workspace for the Change Request table.

Requirement:
I have a Parent → Child Change Request related list (using the parent reference field). I want to add an Add button that opens a Multi Record Associator (MRA) so users can select Change Requests and set their parent field to the current Change Request.

What I’ve done:

* Created a new Action Payload Definition by copying the OOTB Change Request MRA.
* Updated the payload to use:
* userGivenTable = change_request
* referenceFieldName = parent
* parentFieldName = parent
* type = o2m
* Created a new Action Assignment:
* Implemented as: UXF Client Action
* Client Action: Child Change Request MRA
* Table: change_request
* Copied both OOTB UX Add-on Event Mappings and updated them to reference my new Action Assignment.
* Verified the target event is [Record Page] Open modal.
* Cleared cache and refreshed the workspace.

Issue:
The Add button never appears on the related list in Service Operations Workspace.

Question:
Is there any additional configuration required for custom Related List Declarative Actions in SOW (such as Action Models, Action Configurations, UI Builder configuration, or registration with the related list)? Has anyone implemented a custom MRA-based related list action for Change Request successfully?

Any guidance would be appreciated.