How To Fix SV355 - The dynpro number is in the reserved customer range.

SAP Error Message - Details

• Message type: E = Error

• Message class: SV - View Maintenance: Customize Messages

• Message number: 355

• Message text: The dynpro number is in the reserved customer range.

What causes this issue?

The screen number lies in the reserved customer number range.

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?

Please enter a screen number in the range 1 - 8999.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SV355 - The dynpro number is in the reserved customer range. ?

  The SAP error message SV355, which states "The dynpro number is in the reserved customer range," typically occurs when there is an attempt to use a screen number (dynpro) that falls within the range reserved for customer development. In SAP, certain ranges of screen numbers are reserved for standard SAP use, while others are designated for customer-specific development.
  Cause:
  
  Dynpro Number Conflict: The dynpro number you are trying to use is already reserved for customer use or is conflicting with an existing screen in the system.
  Development Environment: If you are working in a development environment, it is possible that the screen number you are trying to create or modify is already in use or has been reserved by another developer.
  Incorrect Configuration: Sometimes, the configuration settings may not be correctly set, leading to the system interpreting the dynpro number as reserved.
  
  Solution:
  
  Check Dynpro Number: Verify the dynpro number you are trying to use. Ensure that it does not fall within the reserved range for customer development. Typically, SAP reserves certain ranges (e.g., 1000-1999 for customer screens).
  Use a Different Number: If the dynpro number is indeed in the reserved range, choose a different number that is not reserved. You can check the available ranges in the SAP documentation or by consulting with your SAP administrator.
  Review Existing Screens: Check if the dynpro number is already in use by another screen. You can do this by navigating to the screen in the SAP GUI or using transaction SE80 (Object Navigator) to search for existing screens.
  Consult Documentation: Refer to SAP documentation or notes related to screen development to understand the reserved ranges and best practices for creating custom screens.
  Transport Requests: If you are working with transport requests, ensure that the transport is correctly configured and that there are no conflicts with existing objects.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific guidance or updates related to this error message. SAP frequently updates its knowledge base with solutions to common issues.
  Development Guidelines: Familiarize yourself with SAP's guidelines for custom development, including naming conventions and reserved ranges for objects.
  SAP Community: Engage with the SAP Community forums where other developers may have encountered similar issues and can provide insights or solutions.
  
  By following these steps, you should be able to resolve the SV355 error and continue with your development work in SAP.