How To Fix DO645 - & <> task & started synchronously [&] &

SAP Error Message - Details

• Message type: E = Error

• Message class: DO - Dictionary: Mass activation of domains and data elements

• Message number: 645

• Message text: & <> task & started synchronously [&] &

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 DO645 - & <> task & started synchronously [&] & ?

  The SAP error message DO645 typically indicates an issue related to the execution of a task that was started synchronously. This error can occur in various contexts, such as during the execution of background jobs, workflows, or other processes that involve task management in SAP.
  Cause:
  
  Synchronous Execution Issues: The error often arises when a task that is expected to run synchronously encounters a problem, such as a timeout, resource unavailability, or a deadlock situation.
  Configuration Issues: There may be misconfigurations in the system settings or in the specific task being executed.
  System Performance: High system load or performance issues can lead to delays in task execution, causing the synchronous task to fail.
  Authorization Problems: The user executing the task may not have the necessary authorizations to perform the action, leading to a failure in task execution.
  
  Solution:
  
  Check System Logs: Review the system logs (transaction SM21) and the application logs (transaction SLG1) for more detailed error messages that can provide insights into the root cause.
  Analyze Task Configuration: Verify the configuration of the task that is failing. Ensure that all parameters are set correctly and that there are no missing dependencies.
  Monitor System Performance: Use transaction ST03N to analyze system performance and check for any bottlenecks or resource constraints that may be affecting task execution.
  Increase Timeout Settings: If the task is timing out, consider increasing the timeout settings for the relevant processes.
  Check Authorizations: Ensure that the user executing the task has the necessary authorizations. You can use transaction SU53 to analyze authorization issues.
  Retry the Task: Sometimes, simply retrying the task after addressing any identified issues can resolve the problem.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the error message DO645. You can search for relevant notes in the SAP Support Portal.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Documentation: Review the official SAP documentation for the specific module or functionality you are working with to ensure that you are following best practices.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.