Setting up a Trusted RFC

Steps to Setup Trusted RFC Communication

On your source system say <SID> IN1 you want to setup a trusted RFC connection towards the destination system AP1

Result:

When you configure the RFC  when you logged onto IN1  and your user has enough authorization in AP1, you can use the RFC connection to logon  to AP1 without having to reenter username and password.

Here are the steps

1.enter t-code SM59 on IN1  define an R3 type RFC connection (Connection type 3) towards AP1

2.Maintain technical settings  details in tab

Like

Load balancing  should be No

Maintain target host and system number

3.Next go to the Logon and Security Tab

Enter details like

Trusted system no

Enter client and uid and password

4.Go to the MDMP and Unicode tab

Enter details like

Choose right option in MDMP  & Unicode

Normally MDMP is inactive  and Unicode is yes

5.SAVE RFC connection is created.

Now testing RFC as its working properly or not

1.       Go to Utilities àConnection Test , Authorization test,Unicode test

Now the R3 RFC connection is made , we can continue next step , go to t-code SMT1

 And click on create

1.fill the previously created RFC name

2.Click Yes

3.Now click on maintain destination button

This will take you back into SM59  destination <RFC connection name we have created>

Change the trusted system option to yes in the logon and security  tab

Yes

Remove the user from the logon and select “Current user”

Save the RFC Connection