# Seeing errors with custom Slurm configuration


Starting in AWS ParallelCluster version 3.6.0, you can no longer target single `prolog` or `epilog` scripts by including them in a custom Slurm configuration. In AWS ParallelCluster version 3.6.0 and later versions, you must locate custom `prolog` and `epilog` scripts in the respective `Prolog` and `Epilog` folders. These folders are configured by default to point to:
+ `Prolog` points to `/opt/slurm/etc/scripts/prolog.d/`.
+ `Epilog` points to `/opt/slurm/etc/scripts/epilog.d/`.

We recommend that you keep the `90_plcuster_health_check_manager` prolog script and the `90_pcluster_noop` epilog script in place.

Slurm runs the scripts in reverse alphabetical order. Both the `Prolog` and `Epilog` folder must contain at least one file. For more information, see [Slurm `prolog` and `epilog`](slurm-prolog-epilog-v3.md) and [Slurm configuration customization](slurm-configuration-settings-v3.md).