Max invitation devices
- Type
- invitation_max_devices
- Category
- Invitations
- Enforced atWhen this policy is checked: while someone tries to open, while they create or change an invitation or hold, on a membership change or background sweep (lifecycle), or after a denial (record only).
- Authoring-time
- TiersWhere an admin can set this policy: the whole organization, one integration, or the physical device when the connector supports a device steward.
- OrgIntegrationDevice
- EnforcementEnforcement modes this type accepts. Enforce applies the row. Require approval (user sharing only) opens an admin approval inbox instead of blocking.
- Enforce
- DefaultWhat happens when no row of this type is configured.
- Not configured — invitations may register any number of devices.
The invitation must specify max_devices and may not exceed the effective cap. The limit is evaluated per invitation and combines independently from max_uses, allowing a group to share one invitation while limiting forwarded-link abuse.
When it is enforced
Evaluated when someone creates or updates an invitation, hold, or share. Requests that would exceed the limit are rejected — they are not silently rewritten.
Where to set it
Settings → Policies (org), the integration Policies tab, or — on PalGate — the device steward Policies tab.
Policies never grant access. See thepolicies architecture guidefor how org, integration, and device tiers combine.
Arguments
The config object on create/update. Row fields outsideconfig are enforcement (this type acceptsenforce; any other value is rejected with 400), enabled (disabled rows never apply), and capability.
| Name | Type | Required | Values | Description |
|---|---|---|---|---|
| max_devices | integer | Yes | — | Maximum unique guest browsers or app installations per invitation. Must be greater than 0. |
| applies_to | string[] | No | adminmemberresidentall | Principal kinds this row binds, as a non-empty array of admin, member, resident, all. Other kinds, a bare string, and empty arrays are rejected. `all` matches every kind this policy can bind. A caller is every kind it is at once, and a row binds when any of them is listed. When omitted, the default applies. Default: Every author, including admins. |
| output | string or integer | No | — | Device policies only. One output of the device, as the device reports it (PalGate `1` or `2`, a Shelly, Tasmota, or Waveshare channel index). When set, the policy binds only actions on that output; when omitted, every output of the device. An output that is not one of the device’s outputs, or `output` on an organization or integration policy, is rejected. If an action’s output cannot be identified, an output-scoped policy denies it. |
How overlapping rows combine
Minimum of max_devices across applicable rows. Reject, do not clamp.
Example
An invitation for a four-person booking may use four devices; a fifth new device is rejected.
{ "max_devices": 4}Integrations
This type is documented on these connectors:
- Home Assistant (home_assistant)
- KNX (knx)
- MQTT (mqtt)
- PalGate Cloud (palgate_cloud)
- Shelly Cloud (shelly_cloud)
- Shelly Websocket (shelly_websocket)
- Tasmota (tasmota)
- Virtual Access (virtual_access)
- Virtual Demo Devices (virtual_demo)
- Waveshare (waveshare)
Related
- Policy catalog
- Policies architecture guide
- Max invitation uses (invitation_max_uses)
- No invitation re-share (invitation_no_reshare)
- Require invitation identity (invitation_require_identity)