How To Fix APOC_OC_CONFIG153 - Callback must be publicly instantiatable.

APOC_OC_CONFIG153 - Overview

• Message type: E = Error

• Message class: APOC_OC_CONFIG - Output Control Configuration Messages

• Message number: 153

• Message text: Callback must be publicly instantiatable.

Self-Explanatory Message

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APOC_OC_CONFIG153 - Details

• The SAP error message APOC_OC_CONFIG153 indicates that there is an issue with a callback class in the context of the SAP APO (Advanced Planning and Optimization) system. Specifically, the error message states that the callback must be publicly instantiatable, which means that the class in question is not accessible for instantiation due to its visibility settings.
  
  Cause:
  
  Visibility Modifier: The callback class is likely defined with a visibility modifier that restricts its instantiation. For example, if the class is defined as private or protected, it cannot be instantiated outside of its defining context.
  Incorrect Configuration: The configuration settings for the callback may not be set up correctly, leading to the system being unable to instantiate the required class.
  Missing Implementation: The callback class may not be implemented correctly or may be missing entirely.
  
  
  Solution:
  
  Check Class Definition: Review the definition of the callback class in the ABAP code. Ensure that it is declared as public so