How To Fix 26168 - Document type '&' not defined

26168 - Overview

• Message type: E = Error

• Message class: 26 - Dokumentenverwaltung

• Message number: 168

• Message text: Document type '&' not defined

What causes this issue?

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

System Response

How to fix this error?

Check your entry. Display the possible entries. You see a list of all
the document types defined in your company. vorgesehen sind.
If you require a new document type for the document you want to create,
contact your system administrator. The settings for document types are
defined in the customizing functions for document management.

Error message extract from SAP system. Copyright SAP SE.

26168 - Details

• The SAP error message "26168 Document type '&' not defined" typically occurs when you are trying to post a document (such as an invoice, purchase order, or other financial document) using a document type that has not been configured in the system. This can happen in various modules, including Financial Accounting (FI), Controlling (CO), or Materials Management (MM).
  
  Cause:
  
  Missing Document Type Configuration: The document type you are trying to use has not been defined in the system.
  Incorrect Document Type: The document type may be incorrectly specified in the transaction you are trying to execute.
  Authorization Issues: The user may not have the necessary authorizations to use the specified document type.
  Client-Specific Configuration: The document type may be defined in another client, but not in the current client you are working in.
  
  
  Solution:
  
  
  Define the Document Type:
  
  Go to the transaction code OBAY (for FI) or OMH1 (for MM) to define the document type.
  Check if the document