When attempting to export users to MOSS, the AccountName attribute was assigned from an incorrect field, rather than a string containing the DN as assigned by the provisioning logic. A more useful error message could be returned in this case, stating that the DN is of the incorrect type.
For reference, here was the error message provided:
The extensible extension returned an unsupported error in MIIS.
The stack trace is:
at Unify.Framework.DistinguishedNameComponent.CreateDNComponent(String dnComponentString)
at Unify.Framework.ReferenceValueToDistinguishedNameValueAdapter.Transform(ReferenceValue sourceValue)
at Unify.Framework.ChainValueAdapter`3.Transform(TBaseValue baseValue)
at ... "
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