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Link Id ssm_cb_ea error

Hi experts!!

I need help on this error I've tried to solve this days.

Im creating the ssm_cb_ea linkId and Im getting this error: ora 12504 el listener no ha recibido el service_name en connect_data

Ive checked the tnsnames.ora file







MD7 =


    (ADDRESS =


  (HOST =

  (PORT = 1521))


  (SID = MD7)


      (SERVICE_NAME = MD7)



I can execute the tnsping md7 successfully.

I can also execute the sqlplus SAPSMDDB/ecpSSM__2014/@MD7 and I get this error: Ora 12545 Connect failed because target host or object does not exist

I have checked the environment variable Path, ORACLE_HOME and ORACLE_SID

Is there anything I am missing? I thank any help.


Former Member
Former Member replied

Hi Ingrid,

Make sure the library path is pointing to the 32-bit oracle client then try changing the oracle user to sapsr3db and the Server to MD7 which is your service_name.
This wiki contains a summary of what you need to check:
I hope this helps.

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