How To Fix FKK_EBS123 - The external doc. no. &1 is too long to be used as an internal doc. no.

FKK_EBS123 - Overview

• Message type: E = Error

• Message class: FKK_EBS - Interface between FI-CA and External Billing System

• Message number: 123

• Message text: The external doc. no. &1 is too long to be used as an internal doc. no.

What causes this issue?

When the document number issued by an external system is transferred to
the internal system, the length of the number is limited.

System Response

The system cannot accept the transferred external document number as the
document number for Contract Accounts Receivable and Payable.

How to fix this error?

Note the limitation of number length in the data element
<DS:DE.OPBEL_KK>Number of a Contract Accounts Rec. and Pay. Document</>.
Alternatively, you can make settings for how internal document numbers
are issued in Customizing for the interface.

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.

FKK_EBS123 - Details

• The SAP error message FKK_EBS123 indicates that the external document number provided is too long to be used as an internal document number in the SAP system. This typically occurs in the context of electronic bank statement processing or when dealing with external documents in the Financial Accounting (FI) module.
  
  Cause:
  The error is caused by the external document number exceeding the maximum length allowed by the system for internal document numbers. In SAP, there are specific field length restrictions for various document types, and if the external document number surpasses these limits, the system will trigger this error.
  
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Check Configuration Settings:
  
  Review the configuration settings for document number lengths in the SAP system. You can check the settings in the transaction code OBB2 (for document types) or OBD2 (for external document numbers) to ensure that the lengths are set appropriately.
  
  
  
  Shorten the External Document Number:
  
  If