# PRIM_ALLOW_UNSIT

*LSL constant*

```lsl
integer PRIM_ALLOW_UNSIT = 39;
```

Constant groups: [PrimParam](/constants/groups/PrimParam/), [PrimParamGet](/constants/groups/PrimParamGet/)

When set on a prim that is running a script as part of an experience an avatar that is seated on the sit target and has agreed to participate in the experience will be unable to stand or select another prim to sit on. The restriction remains in place until one of the following conditions is met:

- `PRIM_ALLOW_UNSIT` is changed to [TRUE](/constants/TRUE/)
- `llUnSit( )` is called forcing the avatar to stand.
- `llSitOnLink( )` is called moving this avatar to a new sit target.
- The avatar teleports or is teleported by the experience.
- The agent signs off.
- The agent disables the experience.
- The prim the avatar is seated on is destroyed.
- The agent is unseated for any reason.

This flag has no effect on agents who had seated manually (i.e. **not** via [llSitOnLink](/functions/llSitOnLink/) using experience permissions).

If the linkset moves to a region that has not enabled the experience this value will be ignored and standing will behave as normal, without restriction. If the linkset moves to a parcel that the avatar does not have access to, the avatar will be forced to stand and the unsit restriction will be removed.

## See also

### Functions

- [llGetPrimitiveParams](/functions/llGetPrimitiveParams/)
- [llGetLinkPrimitiveParams](/functions/llGetLinkPrimitiveParams/)

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*Source: [PRIM ALLOW UNSIT](https://wiki.secondlife.com/wiki/PRIM_ALLOW_UNSIT) on the Second Life Wiki. Content from the Second Life Wiki article PRIM ALLOW UNSIT (revision 1216350, 2024-03-14), CC BY-SA 3.0.*

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From lsl.dev: https://lsl.dev/constants/PRIM_ALLOW_UNSIT/