How To Fix FKKBIX2183 - The document type is not allocated to the type of acc./def. posting &1

FKKBIX2183 - Overview

• Message type: E = Error

• Message class: FKKBIX2 - Billing in Contract Accounts Receivable and Payable

• Message number: 183

• Message text: The document type is not allocated to the type of acc./def. posting &1

Self-Explanatory Message

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FKKBIX2183 - Details

• The SAP error message FKKBIX2183 indicates that there is a mismatch between the document type and the type of account or default posting in the system. This typically occurs in the context of financial transactions, particularly when dealing with account postings in the SAP system.
  
  Cause:
  The error arises when:
  
  The document type being used for a transaction is not configured to allow postings to the specified account type (e.g., asset, liability, revenue).
  The configuration settings in the Financial Accounting (FI) module do not align with the document type and the account type being used.
  There may be missing or incorrect entries in the configuration tables that link document types to account types.
  
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Check Document Type Configuration:
  
  Go to the transaction code OBAY (for document types) or OBA7 (for posting keys).
  Verify that the document type you are using is correctly configured to allow postings to the account type in