How To Fix UCM0164 - Data basis &1: Specify logical source system

SAP Error Message - Details

• Message type: E = Error

• Message class: UCM0 - Messages for Data Basis, Cons Area, ...

• Message number: 164

• Message text: Data basis &1: Specify logical source system

What causes this issue?

The system wants to derive the new activity numbers from the activity
numbers of the source. To ensure that the derivation of activity numbers
is done in the same way in all data streams concerned or in each
repetition of the run, the system stores a link between the activity
number of the source and the new activity number. However, if the
activity number of the source was not assigned in the local system, the
system also needs to make a note of the logical name of the system in
which the number was assigned.
Since the logical system is typically not the same as the system in
which the data is stored, you need to specify the name of the logical
source system in the source data basis &V1&. This has not been done.

System Response

The system cannot load data when at the same time activity numbers are
loaded from the activity numbers of the source. This is because the name
of the logical source system can not be determined.

How to fix this error?

Choose one option:
Specify the name of the logical source system in data basis &V1&.
See if you can forego the derivation of activity numbers from the
activity numbers of the source.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message UCM0164 - Data basis &1: Specify logical source system ?

  The SAP error message UCM0164, which states "Data basis &1: Specify logical source system," typically occurs in the context of data extraction or data transfer processes, particularly when working with SAP's data warehousing or data integration tools like SAP BW (Business Warehouse) or SAP Data Services.
  Cause:
  The error indicates that a logical source system has not been specified for the data basis you are trying to work with. This can happen in various scenarios, such as:
  
  Missing Configuration: The logical source system is not configured in the system settings.
  Incorrect Data Source: The data source you are trying to use does not have an associated logical source system.
  Transport Issues: If the configuration was transported from another system, the logical source system might not have been included or properly set up in the target system.
  User Authorization: The user may not have the necessary authorizations to access the logical source system.
  
  Solution:
  To resolve the UCM0164 error, you can follow these steps:
  
  
  Check Configuration:
  
  Go to the relevant transaction (e.g., RSA1 for SAP BW) and check the settings for the data source or data basis.
  Ensure that a logical source system is assigned to the data source.
  
  
  
  Define Logical Source System:
  
  If a logical source system is not defined, you can create one by navigating to the appropriate configuration area (e.g., in SAP BW, you can define it under the "Source Systems" section).
  Make sure to specify the correct parameters and settings for the logical source system.
  
  
  
  Transport Requests:
  
  If the issue arose after a transport, check the transport request to ensure that all necessary objects, including the logical source system, were included and correctly configured in the target system.
  
  
  
  User Authorizations:
  
  Verify that the user has the necessary authorizations to access the logical source system. You may need to consult with your SAP security team to ensure proper roles and permissions are assigned.
  
  
  
  Check for Updates:
  
  Ensure that your SAP system is up to date with the latest patches and updates, as sometimes bugs in earlier versions can lead to such errors.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to UCM0164 for any specific fixes or recommendations provided by SAP.
  Documentation: Review the SAP Help Portal or relevant documentation for detailed information on configuring logical source systems and data sources.
  Community Forums: Engage with SAP community forums or support channels for additional insights and solutions from other users who may have encountered the same issue.
  
  By following these steps, you should be able to identify and resolve the cause of the UCM0164 error in your SAP environment.