Symptom
You noticed that KUT fields are appearing twice in the Email Templates Placeholders section.
Environment
SAP Cloud for Customer
Cause
The behavior is correct. By default the Templates view has Exposed node: CURRENT_COMMON with Include Extension fields marked as true. Hence, fields added to it will be displayed together with the ones from the root. This was developed in order to provide more visibility to Extension fields added to different nodes.
Below you can find a generic example as reference
E.g Field 1 - CURRENT_COMMON|EXT-/BYD/A3O2FP0009F60F02CBD16$XDP$CUSTOMER_QUOTE
E.g Field 2 - ROOT|EXT-/BYD/A3O2FP0009F60F02CBD16$XDP$CUSTOMER_QUOTE
Resolution
This is the standard behavior of the system.
If the feature/functionality is needed as a matter of urgency, please refer to KBA 3475641 - Functionality Currently not Available.
Keywords
Ticket; Sales; TP; Place Holder; Text; Both; Multiple Times; Wrong; , KBA , LOD-CRM-SC-TMP , Template , How To