As documented by SAP: The PCS option specifies a Partner Character Size. It is rarely needed, as during the initial handshake, the RFC library obtains the correct value from the back-end and uses it from then on. Â However, a rare use case could be that the back-end is Unicode and you want to use a non-ISO-Latin-1 username or password for the initial logon. As the initial handshake is done with ISO-Latin-1, the characters in username/passwd would break, resulting in a refused logon. In that case, set PCS=2 and the RFC library will use Unicode for the initial handshake. | |