How To Fix RSAR154 - Check the connection parameters for the source system

RSAR154 - Overview

• Message type: E = Error

• Message class: RSAR - Data Transfer and Metadata Maintenance

• Message number: 154

• Message text: Check the connection parameters for the source system

What causes this issue?

The connection parameters are not correct.
Source system detail message:
&v1& &V2&.

System Response

The source system connection has been terminated.

How to fix this error?

You can find the corresponding input information in an SAP source system
under:
Start menu -> Tools -> Administration -> Monitoring -> System monitoring
-> Servers.
You get possible values for the connection parameters in a concatenated
form, for example <ls>pswdf044_J01_77</>.
In this example, the application server would be <zh> pswdf044</>, the
system ID <zh>J01</> and the system number <zh>77</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message RSAR154 - Check the connection parameters for the source system ?

  The SAP error message RSAR154, which states "Check the connection parameters for the source system," typically occurs in the context of SAP's Remote Function Call (RFC) or when dealing with data extraction from a source system, such as SAP BW (Business Warehouse) or SAP ECC (Enterprise Central Component). This error indicates that there is an issue with the connection parameters configured for the source system.
  Causes:
  
  Incorrect Connection Parameters: The connection parameters (such as hostname, system number, client, user, password) for the source system may be incorrectly configured.
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the source system.
  Authorization Issues: The user credentials provided may not have the necessary authorizations to access the source system.
  Source System Down: The source system may be down or not available at the moment.
  RFC Destination Issues: The RFC destination may not be correctly set up in the SAP system.
  Firewall Restrictions: Firewalls or