Avoid RFC data loss during refresh

This process saves you from re-entering data manually in SM59 after a system refresh. The process is just to export and import the tables related to RFC data.
1. Before the refresh create a control file as <RFC_export> in UX level with following content:

Export
file '/usr/sap/trans/bin/<SID>_rfc'
delete from rfcattrib
select * from rfcattrib
delete from rfcdes
select * from rfcdes
delete from rfcdoc
select * from rfcdoc

2. Execute following command to export the data:
R3trans -w <log_file> RFC_export

Review the log file.

After the refresh:

3. Create a import file as "RFC_import" with following contents:

import
file = '<SID>_rfc'

4. Execute following command to import
R3trans -w <log_file> RFC_ import

review log file

5. Verify that RFC's were updated sucessfully in SM59

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This was first published in July 2003

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