3506809 - "Unable to load objects to import" error when selecting Entity with Data Access: Replication Flow to Local Tables in Semantics Onboarding - SAP Datasphere

When selecting Entity with Data Access: "Replication Flow to Local Tables" in Semantics Onboarding, the following error is raised:

Unable to load objects to import.
We can provide the following information to assist either you or an SAP engineer to solve the issue:
======
Correlation ID: <correlation ID>
HTTP Status: 500 error
Error Code:
Technical Message:
======

The following information can be confirmed in Network trace:
======
modelingPattern: ANALYTICAL_DIMENSION
softwareComponent: S4CORE
remoteAccessMode: VIA_REPFLOW
includeProposedRepflowName: true
dwcObjectTypes: DL

"Could not import entity <entity name>, Check if selected entity <entity name> is valid"
======

This error is NOT occurring in case Data Access: "Remote tables" is selected. 

SAP Datasphere

In Semantics Onboarding,

1. Select Connection and click next step
2. Select Entity and click next step
3. Error appears

The prerequisites to use a new deployment option "Replication Flow to Local Table" is missing.

The following import options are available in the Import Entities wizard:

• Import Entities as "Local Tables with Replication Flows" (using infrastructure provided via SAP Note 3463326, available if configured)
• Import Entities as "Remote Tables" (using infrastructure provided via SAP Note 3081998)

1. Check SAP Note 3463326 if the Prerequisites to use new deployment option "Replication Flow to Local Table" have been fulfilled
2. Refer to the solution section of SAP Note 3463326 and check if all required settings are correctly done

• 3081998 - Metadata import of CSN entities from SAP S/4HANA, on-premise edition to SAP Datasphere Cloud - central initial note
• 3463326 - SAP Datasphere: Metadata Import from SAP S/4HANA On-Premise via "CSN Exposure" Service - New Deployment Option "Replication Flow to Local Table"
• 2280022 - How to collect a HTTP archive (HAR) file (Chrome developer tools network trace) in SAP Analytics Cloud

Semantics Onboarding, Unable to load objects to import, Replication Flow to Local Tables, Remote tables, entity, 500 error, Metadata Import , KBA , DS-MD-ESH , Repository Explorer , Problem