How To Fix /SAPAPO/SCHED835 - Item category &1 is assigned to the invalid process alias &2

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/SCHED -

• Message number: 835

• Message text: Item category &1 is assigned to the invalid process alias &2

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/SCHED835 - Item category &1 is assigned to the invalid process alias &2 ?

  The SAP error message /SAPAPO/SCHED835 Item category &1 is assigned to the invalid process alias &2 typically occurs in the context of SAP Advanced Planning and Optimization (APO) when there is a mismatch or misconfiguration related to the process alias and item category in the scheduling or planning process.
  
  Cause:
  
  Invalid Process Alias: The process alias specified in the configuration does not exist or is not correctly defined in the system.
  Incorrect Item Category Assignment: The item category being referenced is not properly linked to a valid process alias.
  
  Configuration Issues: There may be issues in the configuration settings for the planning area or the planning book that lead to this error.
  Transport Issues: If the configuration was transported from one system to another, it might not have been transported correctly, leading to inconsistencies.
  
  
  Solution:
  
  
  Check Process Alias:
  
  Go to the transaction code /SAPAPO/OM17 (or the relevant transaction for managing process aliases).
  Verify that the process alias &2 exists