How To Fix SR064 - Perform the Unicode test (see long text)

SAP Error Message - Details

• Message type: E = Error

• Message class: SR - RFC utilities

• Message number: 064

• Message text: Perform the Unicode test (see long text)

What causes this issue?

You have changed the setting for character widths in the target system
under <ZK>Special Options</>. A dialog box that prompts you to perform a
Unicode test appears in the following three cases:
If you have changed the program ID for the connection type 'T' for the
registered server programs.
If you have changed the target host for the connection type '3'.
If, under <ZK>Special Options</>, you have changed the setting from
non-Unicode to Unicode (or from Unicode to non-Unicode). Also, the
target system must have the type 'T' or '3'.
These changes make it necessary to perform a Unicode test.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

When you perform the Unicode test, the external RFC server program may
terminate if it is a non-Unicode RFC server program, and the <ZK>Unicode
</> setting is used in transaction SM59. If the program terminates,
register it again with the setting <ZK>Non-Unicode</>.
If you perform the Unicode test with the setting <ZK>Non-Unicode</>, an
exception is raised on the page of the external RFC server program (JCo,
.Net, and JRFC). In transaction SM59, change this setting from
<ZK>Non-Unicode</> to <ZK>Unicode</> and perform the Unicode test again.
Once you have performed the Unicode test and the target system is
Unicode-compliant, you can activate the Unicode setting.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.