How To Fix TB845 - Insert keys of differences into table cmpwlk: &

SAP Error Message - Details

• Message type: E = Error

• Message class: TB - SM31 table maintenance messages

• Message number: 845

• Message text: Insert keys of differences into table cmpwlk: &

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 TB845 - Insert keys of differences into table cmpwlk: & ?

  The SAP error message TB845 typically indicates an issue related to the data consistency in the system, particularly when it comes to the comparison of data between different tables or systems. The message suggests that there are differences that need to be addressed, and it is often encountered during processes like data migration, system upgrades, or when running consistency checks.
  Cause:
  
  Data Inconsistency: The error usually arises when there are discrepancies between the expected data in the database and the actual data present. This could be due to incomplete data migration, failed updates, or manual data entry errors.
  Configuration Issues: Incorrect configuration settings in the system can lead to mismatches in data.
  Transport Issues: If changes were transported from one system to another (e.g., from development to production), and the transport did not include all necessary objects or data, inconsistencies can occur.
  
  Solution:
  
  Check Data Consistency: Use transaction codes like SE11 (Data Dictionary) or SE16 (Data Browser) to check the relevant tables for inconsistencies. You may need to compare the data in the cmpwlk table with the source data.
  Run Consistency Checks: Utilize SAP tools to run consistency checks. For example, you can use transaction SICK to check for inconsistencies in the system.
  Re-insert Missing Data: If specific keys or records are missing, you may need to manually insert them into the cmpwlk table or the relevant tables based on your findings.
  Review Transport Logs: If the issue arose after a transport, review the transport logs to ensure that all necessary objects were included and correctly transported.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that might address this specific error. There may be patches or updates that resolve known issues.
  Engage SAP Support: If the issue persists and you cannot resolve it, consider reaching out to SAP Support for assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SE11, SE16, SICK, and others that can help in diagnosing and fixing the issue.
  SAP Notes: Regularly check for updates and notes related to your SAP version, as they may contain fixes or workarounds for known issues.
  Documentation: Review SAP documentation for best practices on data migration and consistency checks to prevent similar issues in the future.
  
  By following these steps, you should be able to identify the root cause of the TB845 error and implement a solution to resolve it.