OpenComms Designer requires 64-bit Oracle 12.2, 18c or 19c Server.

The below DB settings are required for Oracle Server:

CURSOR_SHARING = FORCE
OPEN_CURSORS = 2500 (minimum)
PROCESSES = 300 (minimum)
DEFERRED_SEGMENT_CREATION = FALSE  scope=SPFILE;

A 64-bit Administrative Oracle Client (Client version should match the database version) is also required on each client machine.

It is recommended that all older versions of BentleyComms and Oracle be removed prior to installing OpenComms Designer.