How To Fix PAK162 - Package interface &1 cannot be used by package &2

SAP Error Message - Details

• Message type: E = Error

• Message class: PAK - Package API / Package Tools

• Message number: 162

• Message text: Package interface &1 cannot be used by package &2

What causes this issue?

A restriction of client packages is defined for the package interface
&V1&.
For package &V2&, you cannot create a use access for the package
interface &V1& because package &V2& does not exist in the list of
allowed client packages.

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?

Package &V2& must first of all be included in the list of allowed client
packages of package interface &V1&.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message PAK162 - Package interface &1 cannot be used by package &2 ?

  The SAP error message PAK162 indicates that there is an issue with the package interface in the context of package dependencies. Specifically, it means that the package interface you are trying to use (denoted as &1) cannot be utilized by the package (denoted as &2) due to certain restrictions or conditions.
  Cause:
  
  Package Dependency Issues: The package interface you are trying to use may not be compatible with the package you are working with. This can happen if the package interface is not intended for use by that specific package.
  Transport Layer Restrictions: The package may be in a different transport layer or may not have the necessary authorizations to access the package interface.
  Incorrect Package Configuration: The package might not be properly configured to use the specified interface, or the interface might not be activated or available in the current context.
  
  Solution:
  
  Check Package Configuration: Verify the configuration of both the package interface and the package. Ensure that the package interface is intended for use by the package in question.
  Review Dependencies: Look at the dependencies of the package and the package interface. Make sure that the package interface is included in the correct package hierarchy and that there are no missing dependencies.
  Authorization Check: Ensure that you have the necessary authorizations to access both the package and the package interface. You may need to consult with your SAP Basis or security team.
  Transport Layer: If the packages are in different transport layers, consider moving them to the same layer or adjusting the transport settings.
  Consult Documentation: Refer to SAP documentation or notes related to package interfaces and dependencies for any specific guidelines or restrictions that may apply.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Transaction Codes: Use transaction codes like SE80 (Object Navigator) or SE11 (Data Dictionary) to inspect the package and interface definitions.
  Development Guidelines: Familiarize yourself with SAP's development guidelines regarding package interfaces and dependencies to avoid similar issues in the future.
  
  If the problem persists after checking these aspects, it may be beneficial to reach out to SAP support or consult with a technical expert who specializes in SAP development and package management.