I forgot to add the error (infolog) output.
An error occurred on send - 12305: An error occurred getting the error message..
Error happened during scheduler job execution. Check infolog for details.
Microsoft.Dynamics.Ax.Xpp.ErrorException: Exception of type 'Microsoft.Dynamics.Ax.Xpp.ErrorException' was thrown.
at Dynamics.Ax.Application.RetailCDXDataSync.sync(Object[] params) in RetailCDXDataSync.sync.xpp:line 82
at Dynamics.Ax.Application.RetailCDXJobRunner.Run() in RetailCDXJobRunner.run.xpp:line 3
at Dynamics.Ax.Application.BatchRun.runJobStaticCode(Int64 batchId) in BatchRun.runJobStaticCode.xpp:line 54
at Dynamics.Ax.Application.BatchRun.runJobStatic(Int64 batchId) in BatchRun.runJobStatic.xpp:line 13
at BatchRun::runJobStatic(Object[] )
at Microsoft.Dynamics.Ax.Xpp.ReflectionCallHelper.MakeStaticCall(Type type, String MethodName, Object[] parameters)
at BatchIL.taskThreadEntry(Object threadArg)