Hi Team,
I have developed custom action and a a cloud flow. When action is called it should trigger flow. MS docs for your reference (docs.microsoft.com/.../action-trigger)
I have written a flow, Which will trigger "when an action is performed", here is the screenshot.

Creation actions,
Created one action with the name "Sample Action" its global action.
Created another action with the name "Sample Action with Account" on account entity with input parameters as "Name".
Created two catalogs,
1. Parent Catalog
2. Child Catalog
Created two Catalog Assignments
1. Using 'Child Catalog' as catalog and 'Sample Action' as assignment.
2. Using 'Child Catalog' as catalog and "Sample Action with Account" as assignment.
but when action is triggered, instead it showing fix flow, when click on it it shows the error message as "Custom steps cannot be registered on internal system global sdk message id: 07efb30f-e574-49a8-befb-c5bac5720afe."

Any help.