How To Fix UD028 - & contains a non-alphanumeric character

SAP Error Message - Details

• Message type: E = Error

• Message class: UD - EDM - Enterprise Data Model

• Message number: 028

• Message text: & contains a non-alphanumeric character

What causes this issue?

The object name contains a character not allowed by the SAP naming
conventions. Allowed characters are letters, numbers, underscore and
'/' for indicating name range prefixes. Figures and underscore cannot
be used in the first position of the name.

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.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UD028 - & contains a non-alphanumeric character ?

  The SAP error message UD028 typically indicates that a certain field contains a non-alphanumeric character, which is not allowed in the context of the operation you are trying to perform. This error often arises in various SAP modules when data input does not conform to the expected format.
  
  Cause:
  
  Non-Alphanumeric Characters: The most common cause of this error is the presence of special characters (e.g., symbols like @, #, $, %, &, etc.) in fields that are expected to contain only letters and numbers.
  Field Restrictions: Certain fields in SAP have specific restrictions on the type of characters that can be entered. For example, fields for usernames, material numbers, or certain codes may only accept alphanumeric characters.
  Data Import/Upload Issues: If you are importing data from an external source (like a CSV file), non-alphanumeric characters may inadvertently be included in the data.
  
  
  Solution:
  
  Check Input Data: Review the data you are entering or importing. Ensure that