Adding one more ECC to Duet Enterprise landscape

[Former Member]

Hi Experts,

i have a Duet Enterprise landscape configured where i have one SCL system and one ECC system. As of now, Reporting and Workflow scenarios are configured on the ECC system.

Now i would like to add another ECC (say ECC_2) system into the landscape where i can work with Starter Services.

Please clarify following doubts regarding the same.

1. Can i add this ECC_2 using installation wizard using just "Connect to SAP system" step or do i need to run all the steps in the installation wizard?

2. While running this step, do i need to specify 1 in the textbox or 2 (which indicates number of SAP systems). If i specify 1 and go ahead with the ECC_2 details, will it over-write the configurations done earlier for ECC ??

3. Is it possible to change the source system for "Reporting" / "Workflow" after the installation ? (i mean later as per my preference)

~ Ramanath.

[Former Member · Accepted solution]

Hi,

yes, adding a second system is no problem. That is actually one of the great "features" of Duet Enterprise: you can easily connect multiple system and expose (even aggregated) data to SharePoint.

1. Can i add this ECC_2 using installation wizard using just "Connect to SAP system" step or do i need to run all the steps in the installation wizard? 

Yes, you can do that. Just de-select all but the "Connect to SAP System". When executing this step, the required RFC destinations (both on the SCL and the backend system) will be created, as well as required trusts will be established (e.g. exchange PSE certificates for Web Service Trust / SAP Logon Ticket and Trusted System connections for RFC based communication)

2. While running this step, do i need to specify 1 in the textbox or 2 (which indicates number of SAP systems). If i specify 1 and go ahead with the ECC_2 details, will it over-write the configurations done earlier for ECC ?? 

Leave the 1 in the textbox. This is just a number of how many system you want to connect.

3. Is it possible to change the source system for "Reporting" / "Workflow" after the installation ? (i mean later as per my preference) 

Yes, that is also possible. If you take a look at the IMG (SIMGH -> Service Consumption Layer Administration -> General Settings -> Manage Business Object Groups) that's where the "applications" are stored. These Business Object Groups represent the different applications that you see and use in SharePoint. So for example you see the Business Object Group "SPI_WORKFLOW" (if you used the default BC set configuration) which contains the Business Object "IW_WF_TASK".

Now if you take a look at the "Assign SAP System Aliases" (just select "SPI_WORKFLOW" and double click on "Assign SAP System Aliases") you can see to which server this Business Object Group / scenario is assigned. If the "User Role" is empty this means that all users on the SCL are assigned to this system. Via this table you could assign different roles to different backend system.

This "System Alias" is -- as the name says -- just an alias for the real RFC destination that points to your backend system. If you want to see what backend system this is, you have to go to SIMGH -> Service Consumption Layer Administration -> Connection Settings -> SCL to SAP System -> Manage SAP System Aliases here you can see which System Alias points to which RFC destination.

So in your case -- if you want to switch the backend systems -- you can either change the RFC destination that is assigned to a system alias here, or you create a new system alias (with the RFC destination that points to your new backend system) and assign this System alias to the Business Object Group.

I know it might sound confusing the first time you do it, but it all makes sense and is pretty logic if you get used to it.

Regards,

Holger.

[Former Member · Accepted solution]

Thank you Holger. I am able to add this new ECC in my Duet landscape now.

But while configuring the "StarterServices" against this newly added ECC, i am facing one issue.

In the "Create System Connection" step of "StarterServices" configuration, i am supposed to fill the "Externa Application Key".

But when i click on "Retrieve Key" button and check in the "Global System Settings" link, the External Identifier is BLANK.

Is is OK to have this External Identifier as blank ?? or is there anything that i am supposed to do before executing this step?

~ Ramanath.

[Former Member · Accepted solution]

Hi Ramanath,

like discussed: when you open the SOAMANAGER on the backend system and go to "Technical Configuration" -> "System Global Settings" you should see the External Identifier. if it is not there (or 0), then make sure that you have to enter the "Organization Name" and the "Business System". After that click on "Save" and the External Identifier should be created.

Regards,

Holger.