Message type: E = Error
Message class:  IW - Order Processing 
Message number: 324
Message text: Task list selection not possible due to order status
You want to select a task list for the PM order.
However, the status of the PM order will not allow any further task
lists to be selected.
Example:
A task list was allocated to a PM order. Then the PM order was released.
An employee wants to change the task list allocation after the order has
been released. This is not possible, since the status "released" does
not allow any changes to be made to the task list allocation.
INCLUDE 'KEINE-FUNKTION' OBJECT DOKU ID TX LANGUAGE E
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message IW324, which states "Task list selection not possible due to order status," typically occurs when you are trying to access or use a task list in the context of a maintenance order or production order that is in a status that does not allow for such actions. This can happen in various scenarios, such as when the order is completed, closed, or in a status that restricts modifications. Causes: Order Status: The order may be in a status that does not permit the selection of task lists. Common statuses that can lead to this error include: Completed (TECO) Closed (CLSD) In process but not allowed for task list selection Task List Type: The type of task list you are trying to select may not be compatible with the order status. Authorization Issues: Sometimes, the user may not have the necessary authorizations to perform actions on the order. Solutions: Check Order Status: Navigate to the order
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