Archive Shuttle Exchange Import module may log an error below during ingestion to Exchange (EAS as source):
"The folder in which items were to be saved could not be found"
When Archive Shuttle creates batch with items to ingest into, it creates the batch also with the paths where the items are going to be ingested.
If a user moves / deletes folder during batch processing then the error is logged.
Automatic batch retry doesn’t create folders and therefore the items will fail permanently.
Restarting Archive Shuttle Exchange Import module works as workaround and batches are created again with new paths.