After RTFM (ADSM Server-to-Server Implementation and Operation)
chapt.4.8
et.al. Expiration(Deletion) of VVs seems quite clear to me.

Sorry for any inconvenience and many thanks!
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Horst SCHERZER                       mailto: Horst.Scherzer AT univie.ac DOT at
Horst SCHERZER                       mailto: Horst.Scherzer AT univie.ac DOT at
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