How To Fix OT809 - Line &1: Prerequisite type &2 is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: OT - SAP Online Correction Support (SOCS)

• Message number: 809

• Message text: Line &1: Prerequisite type &2 is not defined

<ZK>&CAUSE&</>
You have defined an import condition for prerequisite type &V2&.
Prerequisite type &V2& is not known in the system.
Permitted prerequisite types for import conditions:
A / C / D / E / P
Permitted prerequisite types for equivalent import conditions:
A / C / P

System Response

The import condition check was terminated.

How to fix this error?

Check the import condition and correct the entry with errors.
Import condition with errors (line) : &V1&

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message OT809 - Line &1: Prerequisite type &2 is not defined ?

  The SAP error message OT809 indicates that there is an issue with a prerequisite type that is not defined in the system. This error typically occurs in the context of SAP's project management or logistics modules, where certain prerequisites must be established for tasks, activities, or materials.
  Cause:
  The error message "OT809 Line &1: Prerequisite type &2 is not defined" can be caused by several factors:
  
  
  Missing Configuration: The prerequisite type specified in the system is not defined in the configuration settings. This could be due to a missing entry in the relevant customizing tables.
  
  
  Incorrect Data Entry: There may be a typo or incorrect entry in the data where the prerequisite type is specified.
  
  
  Transport Issues: If the system has recently undergone a transport of changes, the prerequisite type may not have been included or properly transported.
  
  
  Version Mismatch: If you are working with different versions of SAP or different environments (e.g., development vs. production), the prerequisite type may exist in one environment but not in another.
  
  
  Solution:
  To resolve the OT809 error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the relevant customizing transaction (e.g., SPRO) and navigate to the area where prerequisite types are defined.
  Ensure that the prerequisite type specified in the error message is correctly defined in the system.
  
  
  
  Verify Data Entry:
  
  Review the data entry where the error occurred. Check for any typos or incorrect values that may have been entered for the prerequisite type.
  
  
  
  Transport Check:
  
  If the error occurred after a transport, verify that all necessary objects and configurations were included in the transport request.
  Check the transport logs for any errors or warnings that may indicate missing configurations.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or help resources for the specific module you are working with to understand the expected prerequisite types and their configurations.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. Provide them with the error message details and any relevant context.
  
  
  
  Related Information:
  
  Transaction Codes: Depending on the context, you may need to use specific transaction codes to access the relevant configuration settings (e.g., SPRO for customizing).
  SAP Notes: Check for any SAP Notes related to the error message OT809, as they may provide additional insights or solutions.
  Community Forums: SAP Community and other forums can be valuable resources for finding similar issues faced by other users and their solutions.
  
  By following these steps, you should be able to identify and resolve the cause of the OT809 error in your SAP system.