How To Fix ATO_CUSTOMER121 - Item check failed. Please check log.

SAP Error Message - Details

• Message type: E = Error

• Message class: ATO_CUSTOMER - ATO Messages for the End User

• Message number: 121

• Message text: Item check failed. Please check log.

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 ATO_CUSTOMER121 - Item check failed. Please check log. ?

  The SAP error message ATO_CUSTOMER121, which states "Item check failed. Please check log," typically occurs in the context of Advanced Variant Configuration (AVC) or when dealing with configurable materials in SAP. This error indicates that there is an issue with the configuration of a specific item in a sales order or a similar document.
  Causes:
  
  Configuration Issues: The item being configured may not meet the required constraints or dependencies defined in the configuration profile.
  Missing Characteristics: Required characteristics for the configuration might be missing or not properly assigned.
  Inconsistent Data: There may be inconsistencies in the master data related to the configurable material, such as incorrect settings in the material master or class.
  Validation Errors: Custom validation rules or checks defined in the configuration may be failing.
  Logistics Settings: Issues with the logistics settings or the way the item is set up in the system can also lead to this error.
  
  Solutions:
  
  Check the Configuration Log: The first step is to check the detailed log for the specific item. This log will provide insights into what exactly failed during the configuration check.
  Review Characteristics and Values: Ensure that all required characteristics are filled in correctly and that the values assigned are valid according to the configuration rules.
  Validate Dependencies: Check the dependencies defined for the configurable material to ensure they are correctly set up and that there are no conflicts.
  Material Master Review: Review the material master data for the configurable material to ensure that all necessary settings are correct and complete.
  Test Configuration: Use the configuration transaction (e.g., CU50) to test the configuration of the item manually and identify any issues.
  Consult Documentation: Refer to the SAP documentation or help resources for specific guidance on the configuration of the material in question.
  Engage Technical Support: If the issue persists, consider reaching out to your SAP support team or consulting with an SAP expert who can analyze the logs and provide a more in-depth solution.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CU50 (Configuration) and CS03 (Display Material BOM) to analyze the configuration and BOM settings.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to this error.
  User Exits and BAdIs: If custom logic is involved, review any user exits or Business Add-Ins (BAdIs) that might be affecting the configuration process.
  
  By following these steps, you should be able to identify and resolve the issue causing the ATO_CUSTOMER121 error in SAP.