When an item is updated it remains in the "updated" state until its opened/dismissed.
"Command on update" means issue the command as long as the item is in this "updated" state.
"Command on update once only" means issue the command only at the time the item switches from "default" to "updated" state.
If the command is e.g. sending an email, then the emails is either send many times or once only.
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For every item, WCM allows the user to specify the frequency of a post-processing command.
What is the difference between "Issue item specific command on update" and "Issue item specific command on update (only once)"?
When an item is updated it remains in the "updated" state until its opened/dismissed.
"Command on update" means issue the command as long as the item is in this "updated" state.
"Command on update once only" means issue the command only at the time the item switches from "default" to "updated" state.
If the command is e.g. sending an email, then the emails is either send many times or once only.