You've got to dereference at the appropriate level e.g 
@{ $run{$runtype}{$pid} }{keys %message} = values %message;

[download]
See. perlreftut and tye's References quick reference for more info on dereferencing complex structures.
HTH

_________
broquaint

In reply to Re: merge/add hash to hash-slice by broquaint
in thread merge/add hash to hash-slice by pelagic

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