Change job on a server
one you are in SM61 - choose Job-Servergroup open, where you can define Group and assign/removeinstance of your App Servers or CI. And then you need to modify the job (that's causing issue) to use this Group name using SM36 -> Exec. Target (this is where you need to select the newly defined Group) These setting should be done before starting the job. SMLG is for logon load balancing which you use for rfc or http load distribution. SM61 you use for defining the Job server group that you can use during creation of background job. When the job is under execution you cannot change the executing server. You need to either schedule the job with a specific background server (SM61 / SM36) or use a third party scheduler to run this job on a specific AS.