How To Fix J1B_NFE018 - Message type &1 is not defined

SAP Error Message - Details

• Message type: E = Error

• Message class: J1B_NFE - Message class for NF-e

• Message number: 018

• Message text: Message type &1 is not defined

What causes this issue?

The messaging system passed a value for the message type to the back-end
system (field I_MSGTYP) that is not defined in the back-end system.

System Response

The back-end system cannot interpret and process the inbound message.

How to fix this error?

Configure the messaging system in a way that it transfers only allowed
message types to the back-end system via the inbound interfaces
J_1B_NFE_XML_IN or J_1B_NFE_XML_IN_TAB.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message J1B_NFE018 - Message type &1 is not defined ?

  The SAP error message J1B_NFE018, which states "Message type &1 is not defined," typically occurs in the context of Brazil's Nota Fiscal Eletrônica (NF-e) processing. This error indicates that the system is trying to process a message type that has not been defined in the configuration.
  Cause:
  
  Missing Configuration: The message type referenced in the error is not defined in the system configuration for NF-e processing.
  Incorrect Message Type: The message type being used may be incorrect or not applicable for the current transaction.
  Transport Issues: If the system has recently undergone a transport or upgrade, the necessary configurations may not have been transported correctly.
  
  Solution:
  
  
  Check Configuration:
  
  Go to the transaction code SPRO and navigate to the relevant configuration for NF-e.
  Ensure that the message type in question is defined in the system. You can check under the path: 
  
  Logistics > Logistics Execution > Shipping > Basic Shipping Functions > Electronic Invoicing > Brazil > Define Message Types for NF-e.
  
  
  If the message type is missing, you may need to create it or adjust the existing configuration.
  
  
  
  Verify Message Type:
  
  Ensure that the message type being used in the transaction is correct. You can check the documentation or consult with your functional team to confirm the appropriate message type for your scenario.
  
  
  
  Transport Requests:
  
  If the issue arose after a transport, verify that all necessary transport requests have been imported correctly and that no configurations are missing.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes that may address this specific error. SAP frequently releases notes that provide fixes or additional guidance for known issues.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test to ensure that the error no longer occurs and that the NF-e processing works as expected.
  
  
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for NF-e to understand the configuration and requirements better.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  Support: If the problem persists, consider reaching out to SAP Support for assistance, providing them with the error details and any steps you have already taken.
  
  By following these steps, you should be able to resolve the J1B_NFE018 error and ensure that your NF-e processing is functioning correctly.