How To Fix WB2B201 - NAST object key not filled correctly (internal error)

SAP Error Message - Details

• Message type: E = Error

• Message class: WB2B - Trading Contract

• Message number: 201

• Message text: NAST object key not filled correctly (internal error)

What causes this issue?

You wanted to read a trading contract.
In this process, the system filters the number of the trading contract
from the object key of a NAST record. A check found that the number of
the trading contract does not have a valid value.

System Response

INCLUDE ISR_STOP

How to fix this error?

INCLUDE ISR_VERWALTUNG

Procedure for System Administrators

An internal error occurred in function module &V2&. The object key of
the NAST record has the following value: &V1&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message WB2B201 - NAST object key not filled correctly (internal error) ?

  The SAP error message WB2B201, which indicates that the NAST object key is not filled correctly, typically arises in the context of output processing in SAP, particularly when dealing with output types and communication methods. The NAST table is used to store output information for various documents, such as purchase orders, sales orders, and invoices.
  Cause:
  The error can occur due to several reasons, including:
  
  
  Incorrect Configuration: The output type may not be configured correctly in the system. This includes settings related to the output determination procedure, condition records, or the assignment of output types to the relevant document types.
  
  
  Missing Data: The necessary data for generating the output may be missing or incomplete. This could include missing fields in the document that are required for the output processing.
  
  
  Custom Development Issues: If there are custom developments or enhancements related to output processing, they may not be handling the NAST object key correctly.
  
  
  Data Inconsistencies: There may be inconsistencies in the data that are causing the NAST object key to be improperly populated.
  
  
  Solution:
  To resolve the WB2B201 error, you can take the following steps:
  
  
  Check Output Configuration:
  
  Go to the output determination configuration for the relevant document type (e.g., sales order, purchase order).
  Ensure that the output type is correctly configured, including the access sequence and condition records.
  
  
  
  Review Document Data:
  
  Check the document (e.g., sales order, purchase order) for any missing or incomplete data that may be required for output processing.
  Ensure that all mandatory fields are filled in.
  
  
  
  Debugging:
  
  If you have access to debugging tools, you can set breakpoints in the output processing logic to see where the NAST object key is being populated and identify any issues.
  
  
  
  Check Custom Code:
  
  If there are any custom enhancements or user exits related to output processing, review the code to ensure that it is correctly handling the NAST object key.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message. There may be known issues or patches available.
  
  
  
  Testing:
  
  After making changes, test the output processing again to ensure that the error is resolved.
  
  
  
  Related Information:
  
  NAST Table: The NAST table is crucial for output management in SAP. It stores information about the output types, their status, and the associated object keys.
  Output Types: Each document type in SAP can have multiple output types, which define how and when outputs are generated (e.g., print, email).
  Transaction Codes: Familiarize yourself with transaction codes related to output configuration, such as NACE (for output types) and ME9A (for output processing).
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis or functional team for further assistance.