Issuses with script as cronjob

[dolphinits]

Hello all,

I have created a script (sh-script) that generates a report of the used space in my zimbra archive per domain.

This script works fine when it's running in the shell under the zimbra user.

But when run as cronjob (in crontab for the zimbra user), it seems that all zimbra related commands are not executed.

Is ist not possible to set zimbra commands in linux scripts?