How To Fix DS165 - Unable to change program from or to type &1

SAP Error Message - Details

• Message type: E = Error

• Message class: DS - Messages for Editing Text Elements in ABAP Programs

• Message number: 165

• Message text: Unable to change program from or to type &1

What causes this issue?

You tried to assign a type to a program that cannot be assigned in the
program attributes and can only be set internally by one of the tools in
ABAP Workbench or ABAP in Eclipse.
The following program types are reserved:
<LB>F</>,, Reserved for function groups
Function groups are managed by Function Builder. They can be created,
modified, or deleted using Function Builder or Repository Browser only.
<LB>K</>,, Reserved for class definitions
Class definitions are managed by Class Builder. They can be created,
modified, or deleted using Class Builder or Repository Browser only.
<LB>J</>,, Reserved for interface definitions
Interface definitions are managed by Class Builder. They can be created,
modified, or deleted using Class Builder or Repository Browser only.
<LB>T</>,, Reserved for type groups
Type groups are managed in ABAP Dictionary. They can be created,
modified, or deleted using ABAP Dictionary or Repository Browser only.
<LB>X</>,, Reserved for transformations
Transformations (XSLT programs or simple transformation programs) are
managed in Transformation Editor. They can be created, modified, or
deleted using Transformation Editor or Repository Browser only.
<LB>B</>,,Reserved for behavior definitions

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 DS165 - Unable to change program from or to type &1 ?

  The SAP error message DS165 "Unable to change program from or to type &1" typically occurs when there is an issue with the program type in the SAP system. This error can arise in various contexts, such as when trying to change the attributes of a program or when attempting to transport a program between different environments.
  Causes:
  
  Program Type Restrictions: The program you are trying to change may have restrictions based on its current type (e.g., executable, include, function module, etc.). Certain types of programs cannot be converted to others.
  Transport Issues: If you are trying to transport a program and the target system does not support the program type, this error may occur.
  Authorization Issues: Lack of proper authorizations to change the program type can also lead to this error.
  System Configuration: There may be configuration settings in the SAP system that prevent the change of program types.
  
  Solutions:
  
  Check Program Type: Verify the current