How To Fix KD231 - The sender is neither a co-product order, nor a postprocessing order.

KD231 - Overview

• Message type: E = Error

• Message class: KD - CO Settlement

• Message number: 231

• Message text: The sender is neither a co-product order, nor a postprocessing order.

What causes this issue?

Order &V2& is neither a co-product order, nor a postprocessing order.
You cannot process it using the current transaction. You need to use
the settlement transaction for this sender.

Error message extract from SAP system. Copyright SAP SE.

KD231 - Details

• The SAP error message KD231, which states "The sender is neither a co-product order, nor a postprocessing order," typically occurs in the context of controlling and production order management within SAP. This error indicates that the system is unable to process a particular order because it does not recognize it as a valid sender for the transaction being attempted.
  
  Cause:
  
  Incorrect Order Type: The order you are trying to process is not classified as a co-product order or a postprocessing order. This could happen if the order type is not set up correctly in the system.
  
  Configuration Issues: The configuration settings for the order types in the controlling (CO) module may not be set up to recognize the order as a valid sender.
  Data Entry Errors: There may be a mistake in the data entry, such as selecting the wrong order or entering an invalid order number.
  Missing Master Data: The necessary master data for