How To Fix /SAPAPO/SDP309 - Notes table '&' is inconsistent (regeneration required)

/SAPAPO/SDP309 - Overview

• Message type: E = Error

• Message class: /SAPAPO/SDP -

• Message number: 309

• Message text: Notes table '&' is inconsistent (regeneration required)

Self-Explanatory Message

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/SAPAPO/SDP309 - Details

• The SAP error message /SAPAPO/SDP309 Notes table '&' is inconsistent (regeneration required) typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is an inconsistency in the notes table related to the planning data. This inconsistency can arise due to various reasons, such as changes in master data, issues during data transfer, or problems during the planning run.
  
  Cause:
  
  Data Changes: Changes in master data (like material master, location, etc.) that have not been properly reflected in the notes table.
  Planning Runs: Incomplete or failed planning runs that did not update the notes table correctly.
  Data Transfer Issues: Problems during data transfer from SAP ERP to SAP APO, leading to inconsistencies.
  Custom Developments: Custom code or enhancements that may have affected the integrity of the notes table.
  
  
  Solution:
  To resolve the error, you typically need to regenerate the notes table. Here are the steps you can follow:
  
  
  Regenerate the Notes Table:
  
  Use transaction code /SAPAPO/SDP94