SAP Note 14930 - SAPcomm: sideinfo file not found

Symptom:

SAPcomm: Connection to SAP System cannot be established
Error messages: E1506 CPI-C function CMINIT return 20
E1508 SAP CPI-C error code 451 no side info table
found

Solution
The following three options exist to define the search path for the sideinfo file in SAPcomm:

1) UNIX ONLY:
Using the SAPcomm configuration parameter SIDE_INFO.
(See SAPcomm manual or R/3 online documentation)

Example: In the PROGRAM parameter group of the SAPcomm
component "SAP", specify the following:
SIDE_INFO /usr/sap/sideinfo
(If you specify only "SIDE_INFO sideinfo", the system tries to find the sideinfo file in the work directory of the SAPcomm component "SAP").

2) Using the environment variable SIDE_INFO
(see manual SAP Communication: Configuration manual)

The sideinfo file specification via the environment variable takes
effect only if the SAPcomm configuration parameter SIDE_INFO
is not specified (see section 1).

3) Without specification of the configuration parameter or
environment variable:
The system tries to find the sideinfo file under the name
"sideinfo" in the current directory (= working directory of the
SAPcomm component "SAP").

Cause and prerequisites

Configuration error