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

OT809 - Overview

• 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),