If you performed a custom installation and did not install the LDAP driver on the Identity Manager server, you have two options:
Install the files on the Identity Manager server, using the instructions in Considerations for Installing OpenText Identity Manager Components in the OpenText™ Identity Manager Install and Upgrade Guide for Linux or Planning to Install the Engine, Drivers, and Plug-ins in the OpenText™ Identity Manager CE 24.4 (v4.10) Install and Upgrade Guide for Windows.
Install the Remote Loader (required to run the driver on a non-Identity Manager server) and the driver files on a non-Identity Manager server where you want to run the driver. See Configuring the Remote Loader and Drivers in the OpenText™ Identity Manager Install and Upgrade Guide for Linux or Configuring the Remote Loader and Drivers in the OpenText™ Identity Manager CE 24.4 (v4.10) Install and Upgrade Guide for Windows.