How To Fix IWO_BAPI132 - The service product is not changeable for the assigned sales document

IWO_BAPI132 - Overview

• Message type: E = Error

• Message class: IWO_BAPI - BAPIs for ALM Orders: Messages

• Message number: 132

• Message text: The service product is not changeable for the assigned sales document

What causes this issue?

You tried to change the <DS:GLOS.3578FDB1FCD570FEE10000009B38F984>
service product</>, its quantity or unit of measure. However, a sales
document item is already assigned to the service order. The service
product is taken from the sales document item and can no longer be
changed.

System Response

The system terminates processing.

How to fix this error?

Check your entries. You can delete either the assignment to the sales
document item or the specifications for the service product.

Procedure for System Administrators

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.

IWO_BAPI132 - Details

• The SAP error message IWO_BAPI132 indicates that the service product associated with a sales document cannot be changed. This typically occurs in the context of service management or sales order processing when attempting to modify a service-related item that is not allowed due to its current status or configuration.
  Causes:
  
  Status of the Sales Document: The sales document may be in a status that does not allow changes. For example, if the document is already delivered, invoiced, or completed, modifications may be restricted.
  Service Product Configuration: The service product may have specific settings that prevent changes once it is assigned to a sales document. This could be due to the way the service is defined in the system.
  Document Type Restrictions: Certain document types may have restrictions on changing service products after they have been created.
  Dependencies on Other Documents: If the service product is linked to other documents (like contracts or service orders), changes