How To Fix BT666 - Unknown error &

SAP Error Message - Details

• Message type: E = Error

• Message class: BT - Background processing messages

• Message number: 666

• Message text: Unknown error &

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 BT666 - Unknown error & ?

  The SAP error message BT666, which states "Unknown error &," is a generic error message that can occur in various contexts within the SAP system. Since it is a non-specific error, the cause can vary widely depending on the situation in which it arises. Here are some common causes, potential solutions, and related information:
  Possible Causes:
  
  Configuration Issues: There may be misconfigurations in the system settings or parameters.
  Authorization Problems: The user may not have the necessary authorizations to perform the action.
  Data Inconsistencies: There could be inconsistencies or corruption in the data being processed.
  System Bugs: There may be bugs in the SAP software or specific transactions that lead to this error.
  Network Issues: Connectivity problems between the SAP application and the database or other services can trigger this error.
  Missing or Incomplete Data: Required fields may be missing or incomplete in the transaction being processed.
  
  Potential Solutions:
  
  Check Logs: Review the application logs (transaction SLG1) and system logs (transaction SM21) for more detailed error messages that can provide context.
  Authorization Check: Ensure that the user has the necessary authorizations to perform the action. Use transaction SU53 to analyze authorization issues.
  Data Validation: Validate the data being processed to ensure that all required fields are filled and that the data is consistent.
  Configuration Review: Check the relevant configuration settings in the system to ensure they are set up correctly.
  System Updates: Ensure that the SAP system is up to date with the latest patches and updates, as this may resolve known bugs.
  Contact SAP Support: If the issue persists and cannot be resolved through the above steps, consider reaching out to SAP Support for assistance. Provide them with detailed information about the error, including the context in which it occurred.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SM37 (Job Monitoring), ST22 (Dump Analysis), and SE80 (Object Navigator) to investigate further.
  SAP Notes: Search the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Community Forums: Check SAP Community forums or other online resources where users may have discussed similar issues and solutions.
  
  Since BT666 is a generic error, the specific resolution may depend on the context in which it occurs. Always ensure to gather as much information as possible about the circumstances leading to the error for effective troubleshooting.