How To Fix SGT_01819 - Requirement segment cannot be changed; subsequent document created

SAP Error Message - Details

• Message type: E = Error

• Message class: SGT_01 - SGT_01

• Message number: 819

• Message text: Requirement segment cannot be changed; subsequent document created

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SGT_01819 - Requirement segment cannot be changed; subsequent document created ?

  The SAP error message SGT_01819, which states "Requirement segment cannot be changed; subsequent document created," typically occurs in the context of SAP's Advanced Planning and Optimization (APO) or Supply Chain Management (SCM) modules. This error indicates that there is an attempt to modify a requirement segment that has already been referenced in a subsequent document, making it immutable.
  Cause:
  
  Subsequent Document Creation: The requirement segment you are trying to change has already been used in a subsequent document (like a production order, purchase order, etc.). Once a requirement is linked to another document, it cannot be altered to maintain data integrity.
  Data Integrity Rules: SAP enforces strict data integrity rules to ensure that changes do not lead to inconsistencies in the planning and execution processes.
  
  Solution:
  
  Identify the Dependent Document: Check which subsequent document is referencing the requirement segment. You can do this by reviewing the document flow or using transaction codes like MD04 (Stock/Requirements List) to trace the dependencies.
  Create a New Requirement Segment: If you need to change the requirement, you may need to create a new requirement segment instead of modifying the existing one. This can be done by adjusting the planning parameters or creating a new planning record.
  Consult with Stakeholders: If the requirement change is critical, consult with relevant stakeholders (like production, procurement, or planning teams) to determine the best course of action.
  Use Change Management Procedures: Follow your organization's change management procedures to handle the requirement changes appropriately.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as MD04, MD05, or MD06 for managing and viewing requirements and their dependencies.
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message. Sometimes, there may be known issues or enhancements that can help resolve the problem.
  Documentation: Review SAP documentation related to requirement planning and management to understand the implications of changing requirement segments.
  
  If the issue persists or if you need further assistance, consider reaching out to your SAP support team or consulting with an SAP expert who can provide more tailored guidance based on your specific system configuration and business processes.