How To Fix /SAPAPO/AHT456 - The ext. name &1 has been used several times (parameter TABLEOFEVENTS2)

/SAPAPO/AHT456 - Overview

• Message type: E = Error

• Message class: /SAPAPO/AHT -

• Message number: 456

• Message text: The ext. name &1 has been used several times (parameter TABLEOFEVENTS2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/AHT456 - The ext. name &1 has been used several times (parameter TABLEOFEVENTS2) ?

  The SAP error message /SAPAPO/AHT456 indicates that there is a problem with the external name specified in the context of the Advanced Planning and Optimization (APO) module, specifically related to the parameter TABLEOFEVENTS2. This error typically arises when the same external name is used multiple times in a configuration or setup where unique names are required.
  
  Cause:
  The error is caused by the following:
  
  The external name specified in the configuration for TABLEOFEVENTS2 has been defined more than once. This could happen if you are trying to register multiple events or data sources with the same name, which is not allowed.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Identify Duplicate Names:
  
  Check the configuration where TABLEOFEVENTS2 is defined. Look for any entries that have the same external name.
  You can do this by navigating to the relevant transaction or configuration area in SAP APO where these external names are set.
  
  
  
  Modify External Names:
  
  Change the duplicate external