How To Fix RMSA_STD023 - Streams may not be marked as by-products

SAP Error Message - Details

• Message type: E = Error

• Message class: RMSA_STD - RMS-ATL: Messages for Standardization

• Message number: 023

• Message text: Streams may not be marked as by-products

What causes this issue?

You have tried to mark an item in standardization that contains a
stream, as a by-product. However, you can only mark items that are not
streams as by-products.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RMSA_STD023 - Streams may not be marked as by-products ?

  The SAP error message RMSA_STD023, which states "Streams may not be marked as by-products," typically occurs in the context of the SAP Advanced Planning and Optimization (APO) or SAP S/4HANA systems when dealing with production planning and process management. This error indicates that there is an issue with how certain streams (or outputs) of a production process are being classified.
  Cause:
  The error arises when a stream that is not allowed to be classified as a by-product is incorrectly marked as such. In SAP, by-products are secondary outputs of a production process that are not the primary focus of production but still have value. The system has specific rules and configurations that determine which streams can be classified as by-products. If a stream is marked incorrectly, it violates these rules, leading to the error message.
  Solution:
  To resolve the RMSA_STD023 error, you can take the following steps:
  
  
  Check Stream Configuration: Review the configuration of the streams in your production process. Ensure that the streams you are trying to mark as by-products are indeed eligible to be classified as such.
  
  
  Review Production Process: Look at the production process and confirm that the streams are correctly defined. If a stream is a primary product, it should not be marked as a by-product.
  
  
  Adjust Settings: If necessary, adjust the settings in the production order or the material master to ensure that the streams are classified correctly. This may involve changing the settings in the material master data or the production order.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidelines on how to classify streams and by-products in your version of SAP.
  
  
  Seek Help from SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They can provide guidance based on your specific configuration and version of the software.
  
  
  Related Information:
  
  By-Products vs. Co-Products: Understand the difference between by-products and co-products in SAP. Co-products are produced simultaneously with the main product and are typically of significant value, while by-products are secondary outputs that may have lesser value.
  Material Master Data: Ensure that the material master data for the products involved is correctly set up, including the classification of outputs.
  Production Order Management: Familiarize yourself with how production orders are managed in SAP, including the settings for outputs and by-products.
  
  By following these steps and understanding the underlying concepts, you should be able to resolve the RMSA_STD023 error effectively.