How To Fix COM_IL_GEN051 - Enter a letter as the first character of the field name &1

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 051

• Message text: Enter a letter as the first character of the field name &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 COM_IL_GEN051 - Enter a letter as the first character of the field name &1 ?

  The SAP error message COM_IL_GEN051 indicates that there is an issue with the naming convention of a field in your SAP system. Specifically, the error message states that the first character of the field name must be a letter (A-Z or a-z). This is a common requirement in many programming and database environments to ensure that identifiers are valid and can be processed correctly.
  Cause:
  The error is triggered when a field name does not start with a letter. This could happen in various scenarios, such as:
  
  When creating or modifying a data structure, table, or field in the ABAP Dictionary.
  When defining a variable or parameter in an ABAP program.
  When using a naming convention that does not adhere to SAP's requirements.
  
  Solution:
  To resolve this error, you need to ensure that the field name you are trying to use starts with a letter. Here are the steps you can take:
  
  
  Identify the Field Name: Check the field name that is causing the error. The error message will typically include the problematic field name as part of the message.
  
  
  Modify the Field Name: Change the field name so that it starts with a letter. For example, if the field name is 1FieldName, you could change it to FieldName1.
  
  
  Check Naming Conventions: Ensure that any new field names you create in the future follow SAP's naming conventions. Generally, field names should:
  
  Start with a letter.
  Be followed by letters, numbers, or underscores.
  Not exceed the maximum length allowed by SAP (usually 30 characters).
  
  
  
  Test the Changes: After making the necessary changes, test the program or data structure to ensure that the error no longer occurs.
  
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for fields, tables, and other objects. This can help prevent similar errors in the future.
  ABAP Dictionary: If you are working with the ABAP Dictionary, refer to the documentation for guidelines on creating and modifying data elements, domains, and tables.
  Debugging: If you are unsure where the error is originating from, consider using the debugging tools in SAP to trace the execution and identify the exact point where the invalid field name is being used.
  
  By following these steps, you should be able to resolve the COM_IL_GEN051 error and ensure that your field names comply with SAP's requirements.