How To Fix CBN_ES_MESSAGE021 - Connector to entity &1 failed

SAP Error Message - Details

• Message type: E = Error

• Message class: CBN_ES_MESSAGE - Message Class for CestBON Search

• Message number: 021

• Message text: Connector to entity &1 failed

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 CBN_ES_MESSAGE021 - Connector to entity &1 failed ?

  The SAP error message CBN_ES_MESSAGE021, which states "Connector to entity &1 failed," typically indicates that there is an issue with the connection to a specific entity in the SAP system. This error can arise in various contexts, such as when trying to access data from a specific entity or when integrating with external systems.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems preventing the SAP system from reaching the entity.
  Configuration Errors: Incorrect configuration settings in the SAP system or the external system can lead to connection failures.
  Authorization Issues: The user or service account may not have the necessary permissions to access the entity.
  Service Availability: The entity or service you are trying to connect to may be down or unavailable.
  Data Format Issues: The data being sent or received may not be in the expected format, leading to a failure in processing.
  System Updates or Changes: Recent updates or changes in the system configuration or the external entity may have introduced compatibility issues.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the entity is stable and functioning correctly.
  Review Configuration Settings: Verify the configuration settings for the connector to ensure they are correct. This includes checking URLs, ports, and any required parameters.
  Check User Permissions: Ensure that the user or service account has the necessary permissions to access the entity.
  Monitor Service Status: Check the status of the external service or entity to ensure it is up and running.
  Validate Data Formats: Ensure that the data being sent or received is in the correct format and adheres to any required schemas.
  Consult Logs: Review the application logs for more detailed error messages that can provide insights into the root cause of the issue.
  Contact Support: If the issue persists, consider reaching out to SAP support or the support team for the external entity for further assistance.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Review the relevant SAP documentation for the specific connector or integration scenario you are working with.
  Community Forums: Engage with SAP community forums or user groups to see if others have encountered similar issues and found solutions.
  
  By systematically addressing these potential causes and implementing the suggested solutions, you should be able to resolve the error message CBN_ES_MESSAGE021.