How To Fix /SAPAPO/MAT158 - Mandatory field &1 &2 is not filled

SAP Error Message - Details

• Message type: E = Error

• Message class: /SAPAPO/MAT -

• Message number: 158

• Message text: Mandatory field &1 &2 is not filled

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SAPAPO/MAT158 - Mandatory field &1 &2 is not filled ?

  The SAP error message /SAPAPO/MAT158 Mandatory field &1 &2 is not filled typically occurs in the context of SAP Advanced Planning and Optimization (APO) when a mandatory field required for a certain operation or transaction is not populated. This error can arise in various scenarios, such as during the creation or modification of master data, planning data, or when executing certain transactions.
  Cause:
  The error indicates that a required field (denoted by &1 and &2 in the message) is missing. This could be due to:
  
  Incomplete Master Data: The material master or other relevant master data may not have been fully maintained.
  Missing Configuration: Certain configurations or settings in the APO system may not have been set up correctly.
  User Input Error: The user may have overlooked filling in a mandatory field during data entry.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify the Missing Fields: Check the error message for the specific fields indicated by &1 and &2. This will give you a clue about which mandatory fields are not filled.
  
  
  Review Master Data: Go to the relevant master data transaction (e.g., Material Master, Info Record, etc.) and ensure that all mandatory fields are filled out correctly. You can use transaction codes like MM01, MM02, or MM03 for material master data.
  
  
  Check Configuration Settings: If the error is related to configuration, review the settings in the APO system. This may involve checking the configuration for planning areas, key figures, or other relevant settings.
  
  
  Consult Documentation: Refer to SAP documentation or help files for guidance on the specific fields that are mandatory for the operation you are trying to perform.
  
  
  User Training: Ensure that users are trained on the importance of filling in mandatory fields and the implications of missing data.
  
  
  Debugging: If the issue persists and you have access to technical resources, consider debugging the process to identify where the mandatory field is being checked and why it is not being populated.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing master data and configuration in SAP APO.
  User Forums: Engage with SAP community forums or user groups for additional insights and solutions from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue causing the /SAPAPO/MAT158 error message.