How To Fix C1326 - & cannot be used more than once

SAP Error Message - Details

• Message type: E = Error

• Message class: C1 - Characteristics maintenance messages

• Message number: 326

• Message text: & cannot be used more than once

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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message C1326 - & cannot be used more than once ?

  The SAP error message C1326 typically indicates that a certain object or resource is being referenced or used more than once in a context where it is not allowed. This can occur in various scenarios, such as when dealing with configuration settings, master data, or transactional data.
  Cause:
  
  Duplicate Entries: The most common cause is that the system has detected a duplicate entry for a specific object that should be unique.
  Incorrect Configuration: There may be a configuration issue where a particular setting or object is being referenced multiple times in a way that violates the system's rules.
  Data Integrity Issues: There could be underlying data integrity issues, such as inconsistencies in the database or incorrect data migration.
  
  Solution:
  
  Check for Duplicates: Review the entries related to the object in question. Ensure that there are no duplicate entries in the relevant tables or configurations.
  Review Configuration Settings: Go through the configuration settings to ensure that each object is only referenced once. This may involve checking transaction codes, customizing settings, or master data.
  Data Cleanup: If duplicates are found, you may need to delete or merge them to resolve the issue.
  Consult Documentation: Refer to SAP documentation or help files related to the specific transaction or module you are working with for more detailed guidance.
  Debugging: If the issue persists, consider using the debugging tools in SAP to trace the execution and identify where the duplicate reference is occurring.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide patches or updates.
  
  Related Information:
  
  Transaction Codes: Depending on the context of the error, you may need to look into specific transaction codes related to the module you are working with (e.g., MM, SD, FI).
  SAP Community: Engaging with the SAP Community forums can provide insights from other users who may have encountered similar issues.
  Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert.
  
  By following these steps, you should be able to identify the cause of the C1326 error and implement a solution to resolve it.