How To Fix DT405 - No customer or SAP include & exists

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 405

• Message text: No customer or SAP include & exists

What causes this issue?

Another table with the name range CI_ or SI_ is included in a table.
Included tables in this namespace need not necessarily exist. They are
merely placeholders for special customer fields (namespace CI_) or SAP
fields (namespace SI_).

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?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message DT405 - No customer or SAP include & exists ?

  The SAP error message DT405 ("No customer or SAP include & exists") typically occurs when the system is unable to find a specific include file or customer include that is expected to be present in the program or module being executed. This can happen for various reasons, such as missing or incorrectly configured includes, or issues with the development environment.
  Causes:
  
  Missing Include Files: The specified include file may not exist in the system, either because it was deleted or never created.
  Incorrect Naming: The include file may have been incorrectly named or referenced in the code.
  Transport Issues: If the include was recently transported from another system, it may not have been transported correctly.
  Development Environment Issues: There may be issues with the development environment or the configuration of the SAP system.
  Authorization Issues: The user may not have the necessary authorizations to access the include file.
  
  Solutions:
  
  Check Include Existence: Verify if the include file exists in the system. You can do this by navigating to the ABAP Editor (transaction SE38 or SE80) and checking for the include.
  Correct Naming: Ensure that the include file is correctly referenced in the code. Check for any typos or incorrect paths.
  Transport Check: If the include was supposed to be transported, check the transport logs to ensure it was successfully imported into the target system.
  Create Missing Includes: If the include file is missing and is required, you may need to create it or restore it from a backup.
  Authorization Check: Ensure that the user has the necessary authorizations to access the include file. You may need to consult with your SAP security team.
  Debugging: If the issue persists, consider debugging the program to identify where the error is occurring and gather more context.
  
  Related Information:
  
  Transaction Codes: Use SE38 (ABAP Editor) or SE80 (Object Navigator) to check for includes.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP documentation related to ABAP programming and includes for best practices and guidelines.
  
  If the problem continues after trying the above solutions, it may be beneficial to consult with your SAP Basis or ABAP development team for further assistance.