Since SSC backups contain calendar data and not contacts, it is unlikely you can convert VCF contacts as SSC backups. Actually it seems the latest version of Samsung Kies no longer uses SSC file type.
This conversion entry was verified by us and conversion was flagged as wrong or not possible.
Usually this happens when the conversion would try to convert different types of data between each other, such as audio to image, or it is not possible because incompatibility between programs, caused by closed file formats, very limited support etc.
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