How To Fix WL155 - Object & could not be instantiated

SAP Error Message - Details

• Message type: E = Error

• Message class: WL - Workflow: run-time messages

• Message number: 155

• Message text: Object & could not be instantiated

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WL155 - Object & could not be instantiated ?

  The SAP error message WL155, which states "Object & could not be instantiated," typically occurs in the context of SAP Workflow. This error indicates that the system was unable to create an instance of a specified object, which can be due to various reasons. Below are some common causes, potential solutions, and related information for this error:
  Causes:
  
  
  Missing or Incomplete Object Definition: The object (such as a workflow template, task, or business object) may not be defined correctly or may be missing entirely in the system.
  
  
  Authorization Issues: The user or system may lack the necessary authorizations to instantiate the object.
  
  
  Incorrect Configuration: There may be configuration issues in the workflow settings or related components.
  
  
  Runtime Errors: There could be runtime errors in the workflow logic or in the methods associated with the object.
  
  
  Transport Issues: If the object was transported from another system, it may not have been transported correctly or completely.
  
  
  Version Mismatch: The object may be referencing a version that is not available or has been changed.
  
  
  Solutions:
  
  
  Check Object Definition: Verify that the object (workflow, task, etc.) is correctly defined in the system. Ensure that all necessary components are present and correctly configured.
  
  
  Review Authorizations: Ensure that the user or system has the necessary authorizations to instantiate the object. You can check this in transaction SU53 or by reviewing the user's roles and authorizations.
  
  
  Debugging: Use transaction SWI1 (Work Item Selection) or SWI2_FREQ (Work Item Analysis) to analyze the workflow and identify where the instantiation is failing. You can also use transaction SWI2_DURA to check for long-running workflows.
  
  
  Check Workflow Logs: Review the workflow logs for any additional error messages or details that can provide insight into the issue.
  
  
  Transport Check: If the object was recently transported, ensure that the transport was successful and that all dependencies were included.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific object type you are working with for any known issues or additional configuration steps.
  
  
  Testing: If applicable, test the workflow or object in a development or quality assurance environment to replicate the issue and troubleshoot further.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as SWDD (Workflow Builder), SWI1 (Work Item Selection), and SWI2_FREQ (Work Item Analysis).
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.