More API call documentation

API/v1/portal-management/group-permissions/PUT Group permissions.md

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+# PUT Group permissions
+This PUT request updates the permissions of a user group.
+
+You can only modify a group's permissions if your group's weight is equal to or higher than the weight of the group being modified.
+
+#### Location
+```
+/api/v1/portal-management/group-permissions/
+```
+
+#### Permissions required
+`admin-access-control-permissions` RW
+
+#### Body parameters
+| Parameter        | Type | Required | Description                               |
+| ---------------- | ---- | -------- | ----------------------------------------- |
+| permission_uuid  | uuid | yes      | Unique id of the permission.              |
+| user_group_uuid  | uuid | yes      | Unique id of the user group.              |
+| permission_value | enum | yes      | The permission value (`NA`, `RO` or `RW`) |
+
+### Example Body (json)
+```json
+{
+        "permission_uuid": "11abc93d-c265-11f0-95da-7e99ed98b725",
+        "user_group_uuid": "5c1f0102-51ea-11f1-8bac-bc2411125ba4",
+        "permission_value": "RO"
+}
+```
+
+### Example Request
+```php
+$curl = curl_init();
+
+curl_setopt_array($curl, [
+    CURLOPT_URL => $baseUrl . '/api/v1/portal-management/group-permissions/',
+    CURLOPT_RETURNTRANSFER => true,
+    CURLOPT_POST => true,
+    CURLOPT_POSTFIELDS => $json_payload,
+    CURLOPT_HTTPHEADER => [
+        'Authorization: Bearer ' . $token,
+        'Content-Type: application/json',
+        'X-HTTP-Method-Override: PUT'
+    ],
+]);
+
+$response = curl_exec($curl);
+$httpCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
+
+if ($response === false) {
+    echo curl_error($curl);
+}
+
+curl_close($curl);
+```
+
+### Example Response
+```json
+"Access rights changed successfully."
+```
+
+#### Known errors or issues.
+None are known at the time
+If you do encounter issues and get an http code in return, check the response codes on this page.