How To Fix FL709 - Dialog module name is reserved for SAP

SAP Error Message - Details

• Message type: E = Error

• Message class: FL - Function Builder messages

• Message number: 709

• Message text: Dialog module name is reserved for SAP

What causes this issue?

You attempted to create a dialog module with a name which lies in the
SAP naming range. This is not permitted because any future SAP upgrade
could cause your modification to be lost. Moreover, it could result in
inconsistencies in the system due to the internal numbering system used
when creating new function modules. You can only create new dialog
modules in the development system of the relevant function group.
Duplicate module numbers inevitably lead to inconsistencies and to
objects being overwritten during the next SAP upgrade. In addition, SAP
has a policy of strict separation between function groups containing
customer-specific functions and those containing SAP standard software.
Therefore, any function group which is to contain a customer-specific
dialog module must be created as a customer-specific function group.

System Response

How to fix this error?

The names you use for your own dialog modules should begin with
<LB>Y_</> or <LB>Z_</>. SAP has reserved this naming range specially
for customers' own use.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FL709 - Dialog module name is reserved for SAP ?

  The SAP error message FL709, which states "Dialog module name is reserved for SAP," typically occurs when there is an attempt to create or use a dialog module (function module) that has a name that is reserved by SAP. This can happen during the development of custom programs or enhancements when a developer inadvertently chooses a name that conflicts with SAP's reserved naming conventions.
  Cause:
  
  Reserved Names: SAP has a set of reserved names for dialog modules, and any attempt to create a module with one of these names will trigger this error.
  Naming Conventions: SAP has specific naming conventions for various objects, and using a name that does not comply with these conventions can lead to conflicts.
  Transport Issues: If a transport request is incorrectly configured or if there are naming conflicts in the transport, this error may also arise.
  
  Solution:
  
  Rename the Dialog Module: The most straightforward solution is to rename the dialog module to something that does not conflict with SAP's reserved names. Ensure that the new name follows SAP's naming conventions (e.g., starting with a Z or Y for custom developments).
  Check SAP Documentation: Refer to SAP documentation or the SAP Notes to find a list of reserved names and ensure that your naming does not conflict with these.
  Use Transaction SE37: If you are working with function modules, you can use transaction SE37 to check existing function modules and ensure that your naming is unique.
  Review Transport Requests: If the error occurs during a transport, review the transport request to ensure that there are no naming conflicts and that all objects are correctly configured.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional context or solutions for this error.
  Naming Conventions: Familiarize yourself with SAP's naming conventions for custom developments to avoid similar issues in the future.
  Development Guidelines: Follow SAP's development guidelines and best practices to ensure that your custom developments do not conflict with standard SAP objects.
  
  If the issue persists after trying the above solutions, consider reaching out to your SAP Basis or development team for further assistance.