### API Errors

Source: https://hostkit.pt/api/index

This section details the possible errors that the Hostkit API may return, along with their meanings.

```APIDOC
## API Errors

### Description
Lists and describes potential errors returned by the Hostkit API.

### Error Codes and Descriptions
- **Missing parameter**: There is a mandatory parameter for SIBA missing.
- **Incorrect format**: The format of one of the parameters is wrong.
- **Departure is before arrival**: Arrival date is earlier than departure date.
- **Parameter is invalid**: The parameter is not valid.
- **Parameter too long**: The parameter exceeded the maximum size.
- **SIBA error**: Specific SIBA error.
- **Reservation already exists**: The reservation you are trying to add/edit already exists.
- **Reservation not found**: The reservation you are trying to edit/delete doesn't exist.
- **Unknown reservation code**: The reservation code you are trying to obtain doesn't exist.
- **Guest already exists**: The guest you are trying to add already exists.
- **Guest not found**: The guest you are trying to edit/delete doesn't exist.
- **Invalid format for check-in/out**: Incorrect check-in/out date format, must be YYYY-MM-DD.
- **Invalid property ID for your user**: Specified property is not licensed to the API key user.
- **No APIKEY provided**: API key not specified.
- **Account expired**: Your Hostkit account license expired.
- **Invalid plan**: Your plan does not allow access to the API.
- **Incorrect APIKEY provided**: An incorrect API key has been specified.
- **Limit exceeded**: Requests rate limit exceeded.
- **Incorrect protocol**: Incorrect API protocol call.
- **Internal error**: Internal Hostkit error, please contact us.
- **Unknown error**: An unknown error has occurred.
```

--------------------------------

### VAT Reverse Charge Codes

Source: https://hostkit.pt/api/index

This section lists various VAT reverse charge codes applicable in Portugal, along with their corresponding descriptions.

```APIDOC
## VAT Reverse Charge Codes

### Description
Provides a list of VAT reverse charge codes used in Portugal.

### Endpoint
`/websites/hostkit_pt_api/vat_codes

### Response
#### Success Response (200)
- **M40** (string) - VAT reverse charge, Article 6, nr. 6, line a of CIVA (to the contrary)
- **M41** (string) - VAT reverse charge, Article 8, nr. 3 of RITI
- **M42** (string) - VAT reverse charge, Decree-Law no. 21/2007, of 29 January
- **M43** (string) - VAT reverse charge, Decree-Law no. 362/99, of 16th September
- **M99** (string) - Not subject, not taxed

#### Response Example
{
  "M40": "IVA autoliquidação, Artigo 6.º n.º 6 alínea a do CIVA, a contrário",
  "M41": "IVA autoliquidação, Artigo 8.º n.º 3 do RITI",
  "M42": "IVA autoliquidação, Decreto-Lei n.º 21/2007, de 29 de janeiro",
  "M43": "IVA autoliquidação, Decreto-Lei n.º 362/99, de 16 de setembro",
  "M99": "Não sujeito, não tributado"
}
```

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