No data ingests into target Enterprise Vault environment

Issue
In some environments no data may ingest into the target Enterprise Vault environment.  The following may be seen in the EV Import Module log files:

2019-09-02 13:09:17Z| 416| 21|ERROR|ImportItemImpl|Error ingesting item into EV  Void Insert()
Access denied. Insufficient permissions to access the requested object(s).
   at KVS.EnterpriseVault.Interop.IItem.Insert()
   at ArchiveShuttle.Module.EVImportModule.ItemImport.ImportItemImpl(EVImportItemContainer evImportItemContainer)
2019-09-02 13:09:17Z| 416|145|ERROR|ImportItemImpl|Error ingesting item into EV  Void Insert()
Access denied. Insufficient permissions to access the requested object(s).
   at KVS.EnterpriseVault.Interop.IItem.Insert()
   at ArchiveShuttle.Module.EVImportModule.ItemImport.ImportItemImpl(EVImportItemContainer evImportItemContainer)

Solution

Check that the target for the migration has open partitions in each of the Vault Stores.