How To Fix /BOBF/CUST_UI066 - Prefix contains invalid character(s)

/BOBF/CUST_UI066 - Overview

• Message type: E = Error

• Message class: /BOBF/CUST_UI -

• Message number: 066

• Message text: Prefix contains invalid character(s)

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /BOBF/CUST_UI066 - Prefix contains invalid character(s) ?

  The SAP error message /BOBF/CUST_UI066 Prefix contains invalid character(s) typically occurs in the context of the Business Object Processing Framework (BOPF) when you are trying to create or modify a UI configuration or a custom UI element. This error indicates that the prefix you are using for a custom UI element contains characters that are not allowed.
  
  Cause:
  
  Invalid Characters: The prefix you are trying to use may contain special characters, spaces, or other invalid characters that are not permitted in SAP naming conventions.
  Naming Conventions: SAP has specific rules for naming objects, which usually allow only alphanumeric characters and underscores. Any deviation from this can trigger the error.
  
  Configuration Issues: If you are working with a custom UI configuration, it may not be set up correctly, leading to this error.
  
  
  Solution:
  
  Check the Prefix: Review the prefix you are using and ensure it adheres to SAP's naming conventions. It should only contain letters (A-Z, a-z),