How To Fix DT203 - Field & (No underlining permitted in 2nd or 3rd position)

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 203

• Message text: Field & (No underlining permitted in 2nd or 3rd position)

What causes this issue?

The SAP naming convention reserves underlining in the second and third
positions for special objects. The object which you are processing is
not a special object.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Correct your entry. The object name may not contain underlining in the
second or third positions.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT203 - Field & (No underlining permitted in 2nd or 3rd position) ?

  The SAP error message DT203 ("Field & (No underlining permitted in 2nd or 3rd position)") typically occurs when you are trying to define a field name in a data dictionary object (like a table, structure, or view) and the field name does not comply with the naming conventions set by SAP.
  Cause:
  The error is triggered because SAP has specific rules regarding the naming of fields. According to these rules:
  
  Field names must start with a letter (A-Z).
  The second and third characters cannot be underscores (_).
  Field names can contain letters, numbers, and underscores, but they must follow the above restrictions.
  
  If you attempt to create a field name that violates these rules, you will encounter the DT203 error.
  Solution:
  To resolve the DT203 error, you need to rename the field in question to comply with SAP's naming conventions. Here are the steps you can take:
  
  
  Identify the Field: Determine which field is causing the error. The error message will usually indicate the field name.
  
  
  Rename the Field: Change the field name to ensure that:
  
  It starts with a letter.
  The second and third characters are not underscores.
  It follows the general naming conventions (e.g., no special characters other than underscores).
  
  
  
  Activate the Object: After renaming the field, activate the data dictionary object (table, structure, etc.) to ensure that the changes take effect.
  
  
  Test: After making the changes, test the functionality to ensure that everything works as expected.
  
  
  Related Information:
  
  SAP Naming Conventions: Familiarize yourself with SAP's naming conventions for fields, tables, and other objects. This will help you avoid similar errors in the future.
  Data Dictionary: Understanding the SAP Data Dictionary (SE11) can provide insights into how to properly define and manage database objects.
  Documentation: Refer to SAP documentation or help resources for more detailed guidelines on naming conventions and data dictionary management.
  
  By following these steps, you should be able to resolve the DT203 error and successfully define your field in SAP.