---
updatedAt: 2026-03-01T18:39:53.000Z
agentTools:
  siteIndex: https://techdocs.akamai.com/llms.txt
  projectIndex: https://techdocs.akamai.com/property-mgr/llms.txt
---

# ecmsObjectKey

<ul>
<li><strong>Property Manager name</strong>: <a href="doc:msg-store-object-key-selection">Message Store object key selection</a></li>

<li><strong>Behavior version</strong>: The <code>latest</code> rule format supports the <code>ecmsObjectKey</code> behavior v1.0.</li>

<li><strong>Rule format status</strong>: <a href="ref:api-versioning">Beta, possible breaking changes</a></li>

<li><strong>Access</strong>: <a href="ref:advanced-and-locked-features">Read/Write</a></li>

<li><strong>Allowed in includes</strong>: <a href="ref:includes#relationship-with-parent-properties">Not available for <code>latest</code> rule format</a></li>
</ul><hr />

<p>Defines a regular expression to match object keys in custom URLs and to access objects in a data set. You can point custom URLs to access proper values in the target data set. For an overview, see <a href="ref:latest-ecms-database"><code>ecms​Database</code></a>.</p>

<table class="noxdep">
<thead class="noxdep">
<tr class="row_head">
<th>Option</th>
<th>Type</th>
<th>Description</th>
<th><a href="ref:latest-behaviors#object-requirements">Requires</a></th>
</tr>
</thead>
<tbody class="noxdep">
<tr class="row_option regex" id="regex" >
<td class><code>regex</code></td>
<td>string </td>
<td><p>Enables sending a compressed archive file with objects to the default path of the target data set: <code>&lt;hostname&gt;/bulk/&lt;database_name&gt;/&lt;dataset_name&gt;</code>.</p></td>
<td></td>
<th><pre class="input">{"displayType":"string","tag":"input","type":"text"}</pre><pre class="visible"></pre></th></tr>
</tbody>
</table>