RFC Trace in SAP R/3

Hello everybody,
I would like to know how to log a RFC Call on SAP R/3 and the data flow from a RFC.
Thanks for your helps,

Use t.code ST01 to activate RFC trace.
Use t.code ST11 to list the file of the trace. The file name should start with dev_rfc . ST11 is sorted by date so double click on the latest changed dev_rfc file.
Here where it gets kind of ugly.
Look for string ' **** Trace file opened at '
A few lines below that you'll find the data stream that was passed to and from SAP via a RFC. The human readable data is on the right side looking like this.
000000   05000000 05000331 00040000 00010331 .......1.......1
000010   03310004 00000002 03310503 00000503 .1.......1......
000020   05140010 C62F2556 F757D147 9D44C888 ....Æ/%V÷WÑG.DÈ.
000030   BB189C64 05140512 00000512 01300028 »..d.........0.(
000040   5341504C 5A48525F 50414E20 20202020 SAPLZHR_PAN
000050   20202020 20202020 20202020 20202020
000060   20202020 20202020 01300335 000C0000          .0.5....
000070   000A0000 00010000 00100335 03020008 ...........5....
000080   000000AB 00000010 03020304 00AB3132 ...«.........«12
000090   30373030 31313030 30313242 6C61636B 07001100012Black
0000a0   74686F72 6E652050 656E6E73 796C7661 thorne Pennsylva
0000b0   6E696120 20202020 20426C61 636B7468 nia      Blackth
0000c0   6F726E65 20504120 20202020 20202020 orne PA
0000d0   20202020 20202034 32332053 2E204D61         423 S. Ma
0000e0   696E2053 742E2020 20202020 20202020 in St.
0000f0   20202020 20202020 20202020 20202031                 1
000100   38383130 20202020 20417468 656E7320 8810     Athens
000110   20202020 20202020 20202020 20202020
000120   20205553 20504120 20202020 20202030    US PA        0
000130   30303030 33343634 35030403 0400AB31 000034645.....«1
000140   32303135 30313130 30303135 43415261 201501100015CARa
000150   64202020 20202020 20202020 20202020 d
000160   20202020 20202020 20204341 52616420            CARad
000170   20202020 20202020 20202020 20202020
000180   20202020 20202020 32363030 20566961          2600 Via
000190   20466F72 74756E61 2044722C 20537569   Fortuna Dr, Sui
0001a0   74652033 34302020 20202020 20202020 te 340
I hope this helps.
Mike V.

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