How To Fix O1126 - Document error: Unable to find posting key for &. Enter in table TOIAB.

SAP Error Message - Details

• Message type: E = Error

• Message class: O1 - IS-Oil : Message pool exchanges

• Message number: 126

• Message text: Document error: Unable to find posting key for &. Enter in table TOIAB.

What causes this issue?

The posting key is not maintained in <GL:Customizing>Customizing</>
Table TOIAB.

System Response

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

How to fix this error?

Check if the posting key which was entered is correct.
Create a posting key in Customizing in Table TOIAB.
INCLUDE 'NA_CKSYSAD_AN'

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message O1126 - Document error: Unable to find posting key for &. Enter in table TOIAB. ?

  The SAP error message O1126, which states "Document error: Unable to find posting key for &. Enter in table TOIAB," typically occurs during the posting of financial documents in SAP. This error indicates that the system cannot find a valid posting key for the specified transaction type or document type in the table TOIAB, which is used to define the relationship between document types and posting keys.
  
  Cause:
  
  Missing Posting Key: The posting key that is required for the transaction is not defined in the TOIAB table.
  Incorrect Configuration: The configuration for the document type or posting key may be incorrect or incomplete.
  Custom Development: If there are custom developments or modifications in the system, they may not have been properly configured to handle the posting keys.
  Transport Issues: If the configuration was recently transported from another system, it may not have been transported correctly.
  
  
  Solution:
  
  Check Posting Keys: Verify that the posting key exists in the