How To Fix CN749 - Error when generating planned independent requirements

CN749 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 749

• Message text: Error when generating planned independent requirements

What causes this issue?

An error occurred when planned independent requirements were being
generated.

System Response

The system does not generate the planned independent requirements.

How to fix this error?

Check the settings in Customizing under demand management for planned
independent requirements. Check, for example, whether the number ranges
for planned independent requirements are set properly by choosing
<DS:CHAP.SIMG_CMMENUOMP0PB>Planned independent requirements</>.
Contact the SAP Hotline.

Error message extract from SAP system. Copyright SAP SE.

CN749 - Details

• The SAP error message CN749 typically occurs when there is an issue with generating planned independent requirements (PIR) in the context of production planning and control. This error can arise due to various reasons, and understanding the cause is essential for finding an appropriate solution.
  Cause of CN749 Error
  
  Missing Master Data: The error may occur if the necessary master data (like material master, BOM, routing, etc.) is not maintained or is incomplete.
  Incorrect Planning Parameters: If the planning parameters for the material are not set correctly, it can lead to issues in generating PIR.
  Planning Version Issues: The planning version being used may not be valid or may not have been activated.
  Date Issues: If the dates for the planning horizon are not set correctly, it can lead to errors in generating requirements.
  
  Configuration Issues: There may be configuration issues in the planning settings that prevent the generation of PIR.
  
  Solution Steps
  
  Check Master Data: Ensure that