Maintenance Optimizer: Error during call of SAP back end system

Hello!

Please help me solve the problem.

I just installed Solution Manager 7.0 EHP1

And I want to download from the basket support packages for Solution Manager.

I run the Maintenance Optimizer. Opens a web interface where I select the system and get to a step to confirm the files in the Download Basket. But I get the message that no files in the Download Basket.

And I get this error:

Error during call of SAP back end system (see long text)

№ message SOLMAN_SAP_BACKEND005

Diagnosis

Error calling SAP backend system: RFC destination SAP-OSS does not exist.SAP-OSS via RFC destination

But I setup a connection to SAP. In a transaction SM59 I choose to test the RFC connection SAPOSS and it succeeds.

Maybe I have something not configured?