How To Fix KWUI055 - Name contains the invalid character &1

SAP Error Message - Details

• Message type: E = Error

• Message class: KWUI - Messages for KW UI Controls and Dialogs

• Message number: 055

• Message text: Name contains the invalid character &1

What causes this issue?

The name you want to use for the directory or document in the hierarchy
contains the unpermitted character &V1&.
This message is triggered by the Document Management Framework of the
Knowledge Provider (DMF-KPro). Depending on the scenarios used in it, a
KPro-DMF application decides for tolerant or for restrictive use of
permitted characters.
Tolerant mode:
In this mode all characters are permitted for names of directories and
documents except for:
\ / : * ? " < > |
The purpose of restricting the characters is because the above
characters are not allowed to be used as directory or file name on
Windows and UNIX platforms.
Restrictive mode:
Permitted characters for directory and document names of this hierarchy
are:
a-z, A-Z, 0-9
and the special characters #%+,@^.-_&
as well as the space.
Hyphens(-) must not be used as the first character.
The permitted characters are limited to the syntactic character set and
some characters with special meanings in the Windows and UNIX
environment are excluded. The reasons for restricting the characters
are:
Unrestricted use as directory or file names on Windows and UNIX
platforms.
Upper/lower case conversions for checking uniqueness of names within a
name space beyond all the code pages.
Uniqueness for sorting independent of the platform.

How to fix this error?

Use only permitted characters for the names of directories and
documents. What is more when a file is imported the document name can
freely chosen independenty of the name of the imported file.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KWUI055 - Name contains the invalid character &1 ?

  The SAP error message KWUI055, which states "Name contains the invalid character &1," typically occurs when a user attempts to create or modify an object (such as a variable, function, or other identifiers) in SAP that includes characters not allowed by the naming conventions of the system.
  Cause:
  The error is triggered when the name you are trying to use contains invalid characters. In SAP, certain characters are not permitted in object names. Common invalid characters include:
  
  Special characters (e.g., @, #, $, %, &, etc.)
  Spaces
  Certain punctuation marks
  
  Solution:
  To resolve the KWUI055 error, you should:
  
  Check the Name: Review the name you are trying to use and identify any invalid characters.
  Modify the Name: Change the name to remove any invalid characters. Use only valid characters, which typically include:
  
  Letters (A-Z, a-z)
  Numbers (0-9)
  Underscores (_)
  The name should start with a letter or underscore.
  
  
  Follow Naming Conventions: Ensure that the name adheres to SAP's naming conventions for the specific type of object you are working with. For example, variable names often have specific prefixes or formats.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for specific naming conventions related to the type of object you are working with.
  SAP Community: You can search for discussions or similar issues in the SAP Community forums, where other users may have encountered and resolved the same error.
  Transaction Codes: If you are working within a specific transaction, ensure that you are following the guidelines for that transaction.
  
  By ensuring that the names you use conform to SAP's requirements, you can avoid this error and successfully create or modify your objects.