OData problem: HTTPIO_ERROR_CUSTOM_MYSAPSSO

Recently I have encountered the problem with calling OData services (for Fiori app) after client copy from production to the test system.

When I tried to call the service from GW Client ( /IWFND/SUTIL_GW_CLIENT ), popup showed with the message 

HTTP Send failed: HTTPIO_ERROR_CUSTOM_MYSAPSSO~Fehlermeldung beim Senden der Daten.

It is message with ID  /IWFND/COS_SUTIL100.

Also in the SAP Gateway Error Log ( /IWFND/ERROR_LOG ) there was message

System alias '' does not exist

I checked the alias (App was on the HUB system) and everything was fine.

But as you can find on the troubleshooting guide - you have probably wrong value for parameter

login/create_sso2_ticket

in the profile.

Default value is 3 and needed value should be 2.

So for quick workaround - you can use tcode RZ11 to set the value system-wide

But that value won`t be permanent. It will be lost with the next restart.

For permanent solution, you have to ask your basis person to set that parameter correctly into the default profile (RZ10).

Just to be sure - check also the value of the parameter

login/accept_sso2_ticket

so it is set to the value 1.