<div class="content"><p align="right"><a href="https://msdn.microsoft.com/en-us/library/3c70fec3-6a2e-48ef-bd4e-aa2b3a1cd96a" data-linktype="external">msdn link</a></p><p>The SamrAddMemberToGroup method adds a member to a group.</p><dl>
<dd>
<div><pre> long SamrAddMemberToGroup(
   [in] SAMPR_HANDLE GroupHandle,
   [in] unsigned long MemberId,
   [in] unsigned long Attributes
 );
</pre></div>
</dd></dl><p><b>GroupHandle: </b>An RPC context handle, as
specified in section <a href="8138c078-d881-4d1f-b378-94b4c34a287a" data-linktype="relative-path">2.2.7.2</a>,
representing a <a href="7b2aeb27-92fc-41f6-8437-deb65d950921#gt_7ce4771c-2043-49b8-85d3-0c60c7789f9a" data-linktype="relative-path">group object</a>.</p><p><b>MemberId: </b>A <a href="7b2aeb27-92fc-41f6-8437-deb65d950921#gt_df3d0b61-56cd-4dac-9402-982f1fedc41c" data-linktype="relative-path">RID</a> representing an <a href="7b2aeb27-92fc-41f6-8437-deb65d950921#gt_8d10bd9d-392e-431b-8218-742bdac19815" data-linktype="relative-path">account</a> to add to the
group&#39;s membership list.</p><p><b>Attributes: </b>The characteristics of the
membership relationship. See section <a href="9e093bd2-e451-4dd5-9700-97b977d7ebb2" data-linktype="relative-path">2.2.1.10</a> for legal values
and semantics.</p><p>This protocol asks the RPC runtime, via the <b>strict_context_handle</b>
attribute, to reject the use of context handles created by a method of a
different RPC interface than this one, as specified in <a href="../ms-rpce/290c38b1-92fe-4229-91e6-4fc376610c15" data-linktype="relative-path">[MS-RPCE]</a>
section <a href="../ms-rpce/38ae9f5a-dac2-46ad-b2b7-9c43f211d9f6" data-linktype="relative-path">3</a>.</p><p>Upon receiving this message, the server MUST process the
data from the message subject to the following constraints:</p><ol><li><p><span>    </span>The server MUST
return an error if <i>GroupHandle.HandleType</i> is not equal to
&#34;Group&#34;.</p>
</li><li><p><span>    </span><i>GroupHandle.GrantedAccess</i>
MUST have the required access specified in section <a href="87bacbd0-7b8b-429f-abc6-4b3d895d4e90" data-linktype="relative-path">3.1.2.2</a>. Otherwise, the
server MUST return STATUS_ACCESS_DENIED.</p>
</li><li><p><span>    </span>All database
operations MUST occur in a single transaction.</p>
</li><li><p><span>    </span>Let G be the
group referenced by <i>GroupHandle.Object</i>.</p>
</li><li><p><span>    </span>Let TargetSid be
the <a href="7b2aeb27-92fc-41f6-8437-deb65d950921#gt_83f2020d-0804-4840-a5ac-e06439d50f8d" data-linktype="relative-path">SID</a> composed by
making the MemberId a suffix to the <a href="7b2aeb27-92fc-41f6-8437-deb65d950921#gt_9066e9dc-8275-4452-9073-daab5fd427c5" data-linktype="relative-path">domain prefix</a> of G&#39;s
objectSid.</p>
</li><li><p><span>    </span>If there is no
object whose <b>objectSid</b> attribute is TargetSid, the server MUST return
STATUS_NO_SUCH_USER.</p>
</li><li><p><span>    </span>If G&#39;s member
attribute already has as a <a href="7b2aeb27-92fc-41f6-8437-deb65d950921#gt_4d5e1f08-aa00-4dde-9411-7dd6e09ed85a" data-linktype="relative-path">dsname</a>
value that references the object whose <b>objectSid</b> is TargetSid, the
server MUST return an error.</p>
</li><li><p><span>    </span>G&#39;s member
attribute MUST be updated to add a dsname value that references the object with
the <b>objectSid</b> value TargetSid.</p>
</li><li><p><span>    </span>The message
processing specified in section <a href="87988bdd-b100-4b19-874e-9fce919d9114" data-linktype="relative-path">3.1.5.14.7</a> for the <i>Attributes</i>
parameter MUST be adhered to.</p>
</li></ol></div>