How To Fix COM_IL_GEN063 - Field name &1 is reserved; choose another field name

SAP Error Message - Details

• Message type: E = Error

• Message class: COM_IL_GEN - Error/Status Messages Relationship Type Generator

• Message number: 063

• Message text: Field name &1 is reserved; choose another field name

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 COM_IL_GEN063 - Field name &1 is reserved; choose another field name ?

  The SAP error message COM_IL_GEN063 indicates that the field name you are trying to use is reserved and cannot be used for your custom development or configuration. This typically occurs in the context of SAP's Integrated Logistics (IL) or other modules where certain field names are predefined and reserved for system use.
  Cause:
  
  Reserved Field Names: The field name you are attempting to use is part of the SAP standard and is reserved for internal use. This can happen when creating custom fields in tables, structures, or during the configuration of certain functionalities.
  Naming Conventions: SAP has specific naming conventions and reserved prefixes for fields. If your chosen field name conflicts with these conventions, the system will throw this error.
  
  Solution:
  
  Choose a Different Field Name: The simplest solution is to select a different field name that does not conflict with reserved names. You can use a naming convention that includes a prefix (e.g., Z or Y) to indicate that it is a custom field.
  Check SAP Documentation: Refer to SAP documentation or the Data Dictionary (SE11) to see a list of reserved field names and ensure that your chosen name does not conflict with any of them.
  Use Transaction SE11: You can use transaction SE11 (Data Dictionary) to check existing fields and their definitions. This can help you identify reserved names and find suitable alternatives.
  Consult with SAP Support: If you are unsure about which names are reserved or need further assistance, consider reaching out to SAP support or your internal SAP team for guidance.
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for custom objects, which typically involve using prefixes like 'Z' or 'Y' for custom developments.
  Data Dictionary (SE11): Use the Data Dictionary to explore existing fields and their properties, which can help you avoid conflicts.
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or updates regarding reserved field names.
  
  By following these steps, you should be able to resolve the error and proceed with your development or configuration tasks in SAP.