Start Job on Another Server Gives Error "Job Does not Exist"

SQL Server Administration
1

This is MSSQL 2014
I have ServerA and ServerB. Each server has a linked server to the other.

I want to start a job on ServerB, from ServerA

On ServerA I run:
EXEC [ServerB\InstanceB].msdb.dbo.sp_start_job N'Job2';

It fails with error: "The specified @job_name ('Job2') does not exist"

This IS a named instance which makes the syntax a bit tricky. I have tweaked it every way, but it always fails. What am I missing?
Thanks, Jack

2

Almost certainly a permissions issue. The login used for the linked server does not have authority on the linked server to start a job.

3

Once again, ScottPletcher, you are exactly right. I checked ServerB and the login didn't have any roles. Took care of that and now my job on ServerA is able to start jobs on ServerB. Thanks for your help!
Jack