# RootParties

Repeating group identifying the owning and entering parties:

<table><thead><tr><th width="95">Tag</th><th width="185">Name</th><th width="138">Data Type</th><th width="108">Required</th><th>Description</th></tr></thead><tbody><tr><td>1116</td><td>NoRootPartyIDs</td><td>NumInGroup</td><td>Y</td><td>Number of parties in the RootParty repeating group.</td></tr><tr><td>1117</td><td>RootPartyID</td><td>String</td><td>Y</td><td>Unique identifier for this root party.<br>When RootPartyIDSource is <code>C</code>, this must be the NDAX participant code.</td></tr><tr><td>1118</td><td>RootPartyIDSource</td><td>Char</td><td>Y</td><td>The source of this root party.<br>Supported values:<br><code>C</code> = Generally accepted market participant identifier (always exactly 1 required)<br><code>G</code> = MIC (optional)</td></tr><tr><td>1119</td><td>RootPartyRole</td><td>Int</td><td>Y</td><td>The role of this root party.<br>Supported values:<br><code>73</code> = Execution Venue</td></tr></tbody></table>