If you link deliverables to a task , you are limited to one deliverable per task. See Ben's post under the limitations section: http://www.applepark.co.uk/deliverables/
If you link deliverables to a task , you are limited to one deliverable per task. See Ben's post under the limitations section: http://www.applepark.co.uk/deliverables/
I manage to link several deliverables to one task from the code (C#, PSI). In documentation on WebSvcOLP there's that You can link as many, as it takes. Problem starts in Project Professional, which for such a tasksystem shows the message.