In Web client:

Navigation: D 365 Instance -> Marketing -> Marketing Lists -> if there is no existing lists (create a dynamic marketing list) -> open any marketing list -> you can see an option as manage menber just below the ribbon, click on Manage member (option) under the ribbon -> Pop up dialog appears with view having " edit columns " option in it.

In UCI:

Navigation: D365 Instance -> marketing lists -> if there is no existing lists (create a dynamic marketing list) ->open any marketing list -> you can see an option as manage member just below the ribbon, click on Manage member (option) under the ribbon -> Pop up dialog appears with view but there is no option of edit column.

Legacy web client behaviour: Manage members screen was customizable and columns were applied after the “Contact List Member View” view on contact was customized. No view had to be selected


UCI behaviour: UCI behaviour only showing two columns and screen is not customizable (no edit column option) -> Feature Limitation of Marketing list in UCI. A view has to be selected in order to show more than the two default columns

Expected:
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The edit columns option should be present in the manager member action pop up in the marketing list in the UCI where as we have edit columns option in Web client.

Actual:
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Unable to have the same feature (edit column) option in UCI.

Ask:
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feature of having edit columns option in manage member's action pop up in the UCI where as it is working fine in Web client.