> For the complete documentation index, see [llms.txt](https://docs.theconfigteam.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.theconfigteam.com/prebilt-ewm/installation/prerequisites-and-assumptions.md).

# Prerequisites and assumptions

This section covers how to install PreBilt for EWM using Neptune or PreBilt Standalone Edition (PSE). It’s designed for SAP technical resources familiar with SAP Basis/development and some non-SAP basics.

## What you need to do before installation

1. Determine if you'll be installing just the base framework or including additional TCTM services, apps, or plugins.
2. Ensure you know which platform you are using for installation: Neptune or PreBilt Standalone Edition (PSE).

## User authorisations

You will need the following transaction access and authorisations to use PreBilt for EWM.

<table data-header-hidden><thead><tr><th width="243.60003662109375">Transaction Code</th><th>Purpose</th></tr></thead><tbody><tr><td><strong>Transaction Code</strong></td><td><strong>Purpose</strong></td></tr><tr><td>SICF</td><td>Activate services</td></tr><tr><td>SE38</td><td>Execute custom reports</td></tr><tr><td>SE80</td><td>ABAP Workbench</td></tr><tr><td>SU53</td><td>Check missing authorizations</td></tr><tr><td>/SCWM/PRDVC</td><td>Set up RF presentation device</td></tr><tr><td>/TCTM/EWM_SETTINGS</td><td>Configure retry &#x26; timeout settings</td></tr><tr><td>SE09</td><td>Transport Organizer</td></tr><tr><td>SE18</td><td>Create BAdI implementations</td></tr><tr><td>SPRO</td><td>RF Application Parameter creation</td></tr></tbody></table>

Authorisations:

* /TCTM/\*