Export NR Reports into PBCS

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Is it possible to export Narrative Reports from NR and import them into Planning? I have tried this using the following approach but hasn't worked for me:

Use EPMAutomate and exportLibraryArtifiacts command in Narrative to export a folder of reports in LCM Format.

Upload the zip file into planning

Use EPMAutomate in planning with importsnapshot command - howewer the generated LCM file isn't being recognised as a valid snapshot.

Also tried importing a report directly in the reports section of planning but its not a format that's support (expected format is a .des file)

Does anyone know if this migration is supported and how it can be done?