SAP Knowledge Base Article - Public

2954129 - Update of Sales Order Not Possible; Change Not Allowed: No Project Task Assigned to Item


You see a process communication error within an intercompany Purchase Order and Sales Order.


SAP Business ByDesign

Reproducing the Issue

  1. Go to the Purchase Requests and Orders work center.
  2. Select the Purchase Orders view.
  3. Search for the ID ABC (ABC represents the ID of the Purchase Order).
  4. Click the Edit button.
  5. Navigate to the Document Flow tab.
  6. Process Communication From the Sales Order XYZ (XYZ represents the ID of the Sales Order).


Sales Order XYZ was released with only one (1) item of type PBTM - Service - time and material (project).
Purchase Order ABC has two (2) items, hence generating the error.

Once the A2A Sales Order is released, adding an item of type Expense - time and material (project) is not allowed. This can only be accomplished when the Sales Order is with the "In Preparation" status.

Only adding of item type Service – Time and Material (Project) is allowed after a Sales Order is released. But if a service has the expense indicator active you cannot change the item type to a service item type such as Service – Time and Material (Project) and therefore you need to cancel the Item in the Purchase Order.


This is the expected system behavior.

For the new added item of type Expense - time and material (project), a new Purchase Order has to be created.

To solve the issue in your existing Purchase Order and Sales Order you need to cancel the Item in the Purchase Order and then send the incident to SAP with the request to also cancel the failed Process Message.

See Also

2925259 - Process Communication Error in Inter-company Sales Order


Purchase Order, Sales Order, PBTM, Time and Material, Intercompany , KBA , AP-SLO-SO , Sales Order , How To


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