How To Fix CM_SERVICE_ADMIN409 - Management server with RFC program ID &1 already exists

SAP Error Message - Details

• Message type: E = Error

• Message class: CM_SERVICE_ADMIN - Service Administration

• Message number: 409

• Message text: Management server with RFC program ID &1 already exists

What causes this issue?

You have created a number of Remote Function Call (RFC) destinations
with the same RFC program ID &V1&. (To create RFC destinations, in the
<LS>SAP Easy Access</> screen choose <LS>Tools -> Administration ->
Administration -> Network -> RFC Destinations</> (transaction SM59).)

System Response

The management server service for the RFC destination &V2& (RFC program
ID &V1&) is not taken into account.

How to fix this error?

To set up a number of management server services for an SAP system, the
respective RFC program ID for the relevant destination must be unique.
The following table shows how you must set the parameters in the SAP
system (transaction SM59) and on the server PC (SAPRFC.INI) to configure
a number of management servers for the system &V3&. The placeholders <(>
<<)>Host1> to <Hostn> stand for the IP address and the computer
name of the RFC server on which the respective management server service
is installed.
No.,,Destination (SM59),, Prog.ID. (SM59),,Destination (SAPRFC.INI),,
Prog.ID. (SAPRFC.INI)
1,,EHS_MGMT_<Host1>,,EHS_MGMT_<Host1>,,EHS_MGMT_<(>
<<)>Host1>_&V3&,,EHS_MGMT_<Host1>
2,,EHS_MGMT_<Host2>,,EHS_MGMT_<Host2>,,EHS_MGMT_<(>
<<)>Host2>_&V3&,,EHS_MGMT_<Host2>
n,,EHS_MGMT_<Hostn>,,EHS_MGMT_<Hostn>,,EHS_MGMT_<(>
<<)>Hostn>_&V3&,,EHS_MGMT_<Hostn>

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 CM_SERVICE_ADMIN409 - Management server with RFC program ID &1 already exists ?

  The SAP error message CM_SERVICE_ADMIN409 indicates that there is an attempt to register a management server with a Remote Function Call (RFC) program ID that is already in use. This typically occurs in the context of SAP's Central Management Server (CMS) or when dealing with SAP's Landscape Management.
  
  Cause:
  The error is caused by the following scenarios:
  
  Duplicate Registration: The RFC program ID you are trying to register is already registered with another management server or instance.
  
  Configuration Issues: There may be misconfigurations in the system that lead to multiple instances trying to use the same RFC program ID.
  Network Issues: Sometimes, network issues can cause the system to think that a registration is still active when it is not.
  
  
  Solution:
  To resolve the CM_SERVICE_ADMIN409 error, you can follow these steps:
  
  
  Check Existing Registrations:
  
  Use transaction SM59 to check the RFC destinations and see if the program ID is already in use.
  You can also check the management server logs