How To Fix INV120 - Define a display function for reference type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: INV - Check for Bill Receipt

• Message number: 120

• Message text: Define a display function for reference type &1

What causes this issue?

You cannot display a reference for a bill document because the defintion
of the function module used to display the reference is missing.

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?

Procedure for System Administrators

In Customizing, define a function module to display reference type &1.
INCLUDE ISU_PENCIL OBJECT DOKU ID TX

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message INV120 - Define a display function for reference type &1 ?

  The SAP error message INV120, which states "Define a display function for reference type &1," typically occurs in the context of the SAP system when there is an issue related to the display function for a reference type in the system. This error is often encountered in the context of the SAP Investment Management (IM) module or when dealing with specific reference types in the system.
  Cause:
  The error is usually caused by one of the following reasons:
  
  Missing Configuration: The display function for the specified reference type has not been defined in the system. This can happen if the reference type is newly created or if the configuration was not completed properly.
  Custom Development: If there are custom developments or enhancements in the system, they may not have included the necessary display functions for certain reference types.
  Transport Issues: If the configuration was transported from one system to another (e.g., from development to production), the transport may not have included all necessary components.
  
  Solution:
  To resolve the INV120 error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the relevant configuration settings in the SAP system for the Investment Management module or the specific area where the error is occurring.
  Ensure that a display function is defined for the reference type indicated in the error message. This can typically be done in the IMG (Implementation Guide) under the relevant section for Investment Management.
  
  
  
  Define Display Function:
  
  If a display function is missing, you will need to create one. This usually involves defining how the reference type should be displayed in the system.
  You may need to consult with your SAP functional consultant or refer to SAP documentation for the specific steps to define a display function.
  
  
  
  Check for Custom Code:
  
  If there are custom developments, review the code to ensure that it properly handles the reference type in question and that it includes the necessary display logic.
  
  
  
  Transport Check:
  
  If the issue arose after a transport, verify that all necessary objects were included in the transport request. You may need to re-transport or manually configure the missing elements.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error message or provide additional guidance.
  
  
  
  Related Information:
  
  Transaction Codes: You may need to use transaction codes like SPRO (for configuration) or SE80 (for development) to access the necessary settings or code.
  Documentation: Refer to SAP Help documentation for Investment Management or the specific module you are working with for detailed guidance on configuration and display functions.
  SAP Community: Engaging with the SAP Community forums can also provide insights from other users who may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the INV120 error and implement a solution to resolve it.