How To Fix CM_EXPERT303 - An error occurred when reading the header data of specification &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_EXPERT - Messages for Expert

• Message number: 303

• Message text: An error occurred when reading the header data of specification &1

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 CM_EXPERT303 - An error occurred when reading the header data of specification &1 ?

  The SAP error message CM_EXPERT303 indicates that there was an issue when attempting to read the header data of a specification in the SAP system. This error typically occurs in the context of the SAP Environment, Health, and Safety (EHS) module or when dealing with material specifications.
  Causes:
  
  Missing Specification: The specification identified by the key (e.g., &1) may not exist in the database.
  Authorization Issues: The user may not have the necessary authorizations to access the specification data.
  Data Corruption: There may be corruption in the database or issues with the data integrity of the specification.
  Incorrect Input: The input provided to the system may be incorrect or malformed, leading to the inability to retrieve the header data.
  System Configuration Issues: There may be configuration issues in the SAP system that prevent proper access to the specification data.
  
  Solutions:
  
  Check Specification Existence: Verify that the specification with the given identifier exists in the system. You can do this by searching for the specification in the relevant transaction (e.g., using transaction code CG02 for material specifications).
  Review Authorizations: Ensure that the user has the necessary authorizations to access the specification. This can be checked in the user roles and profiles.
  Data Integrity Check: Perform a data integrity check on the specification data. This may involve running database consistency checks or using SAP tools to identify and fix any corruption.
  Correct Input: Double-check the input parameters being used to access the specification. Ensure that they are correct and formatted properly.
  Consult SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or workarounds for known issues.
  Contact SAP Support: If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance. Provide them with the error message details and any relevant context.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CG02 (Change Material Specification) or CG03 (Display Material Specification) to manage specifications.
  SAP Documentation: Review SAP documentation related to the EHS module and material specifications for additional context and troubleshooting steps.
  User Forums: Check SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to diagnose and resolve the CM_EXPERT303 error in your SAP system.