How To Fix DNO005 - External notification number contains invalid characters

DNO005 - Overview

• Message type: E = Error

• Message class: DNO - Messages for General Notifications

• Message number: 005

• Message text: External notification number contains invalid characters

What causes this issue?

You entered characters that are not permitted.

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?

Only the characters from "A" to "Z", from "0" to "9" , "-", and "/"
are permitted. Modify your entry accordingly.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

DNO005 - Details

• The SAP error message DNO005 indicates that the external notification number you are trying to use contains invalid characters. This error typically occurs in the context of notifications in SAP, particularly when dealing with external systems or interfaces that require specific formats for identifiers.
  
  Cause:
  The error is caused by the presence of characters in the external notification number that are not allowed according to the defined rules in the SAP system. Common causes include:
  
  Special characters (e.g., @, #, $, %, etc.)
  Spaces or leading/trailing spaces
  Non-alphanumeric characters
  Length of the notification number exceeding the allowed limit
  
  
  Solution:
  To resolve the DNO005 error, you can take the following steps:
  
  
  Check the Notification Number: Review the external notification number you are trying to enter. Ensure that it only contains valid characters, typically alphanumeric (A-Z, 0-9).
  
  
  Remove Invalid Characters: If you find any special characters or spaces, remove them. Ensure that the notification number adheres to the expected format.
  
  
  Verify Length: Ensure