Workflow Error in AX 2009


I am using AX 2009 SP1, and was developing my own custom workflow. While trying to request change a workflow task, I encountered the following error : Stopped (error): User XX-U5 has no access to menu item xInventJournalTable. It should be noted I’ve assigned full control access to both the menu item for xInventJournalTable (a custom form which takes its data from inventJournalTable) and the InventJournalTable tables.

The error message in Event Viewer was : Workflow instance: 1ecc446a-599b-46cd-9318-ed1880b798b3 was terminated for the following reason: Dynamics Adapter CallStaticClassMethod failed…

Also, I’m using a single server containing a single AOS and workflow instance

Could anybody shed any light on this case?