# SENTPublicDefinitions

### SENTInitIssue

Initialization failure issues

```objectivec
typedef NS_ENUM(NSUInteger, SENTInitIssue)
```

| Issue                               | Description                                                                            |
| ----------------------------------- | -------------------------------------------------------------------------------------- |
| **SENTInitIssueInvalidCredentials** | Given App ID and Secret pair is invalid                                                |
| **SENTInitIssueChangedCredentials** | Given App ID and Secret pair has been changed                                          |
| **SENTInitIssueServiceUnreachable** | Service unreachable due to network. Most likely due to network or availability issues. |
| **SENTInitIssueLinkFailed**         | User linking failed                                                                    |
| **SENTInitIssueResetInProgress**    | Reset of the SDK is in progress                                                        |

### SENTStartStatus

Defines the status of the SDK

```objectivec
typedef NS_ENUM(NSUInteger, SENTStartStatus)
```

<table><thead><tr><th width="301.1408259986459">Issue</th><th>Description</th></tr></thead><tbody><tr><td><strong>SENTStartStatusNotStarted</strong></td><td>SDK not started yet</td></tr><tr><td><strong>SENTStartStatusPending</strong></td><td>SDK initialization in progress</td></tr><tr><td><strong>SENTStartStatusStarted</strong></td><td>SDK has started successfuly</td></tr><tr><td><strong>SENTStartStatusExpired</strong></td><td>SDK has been expired</td></tr></tbody></table>

### SENTTransportMode

Current Transportation mode detected by Sentiance SDK

```objectivec
typedef NS_ENUM(NSUInteger, SENTTransportMode)
{
    SENTTransportModeUnknown = 1,
    SENTTransportModeCar     = 2,
    SENTTransportModeBicycle = 3,
    SENTTransportModeOnFoot  = 4,
    SENTTransportModeTrain   = 5,
    SENTTransportModeTram    = 6,
    SENTTransportModeBus     = 7,
    SENTTransportModePlane   = 8,
    SENTTransportModeBoat    = 9,
    SENTTransportModeMetro   = 10,
    SENTTransportModeRunning = 11
};
```

###

### SENTExternalEventType

Deprecated.

External event type definition for SDK trigger

### SENTripType

Trip trigger status

```objectivec
typedef NS_ENUM(NSUInteger, SENTTripType)
{
    SENTTripTypeSDK      = 1,
    SENTTripTypeExternal = 2
};
```

<table><thead><tr><th width="239.29953917050693">Trip Type</th><th>Description</th></tr></thead><tbody><tr><td>SENTTripTypeSDK</td><td>Trip started by SDK.</td></tr><tr><td>SENTTripTypeExternal</td><td>Trip start triggered manually by calling [SENTSDK startTip]</td></tr></tbody></table>

### SENTInitializationFailureReason

Initialization failure Issues returned during Initialization

```objectivec
typedef NS_ENUM(NSUInteger, SENTInitializationFailureReason) {
    SENTInitializationFailureReasonNone,
    SENTInitializationFailureReasonUnsupportedOSVersion,
    /** Reinitialization is allowed only immediately after resetting the SDK (i.e. before creating a user). */
    SENTInitializationFailureReasonReinitializationNotAllowed,
    SENTInitializationFailureReasonSdkResetInProgress,
    SENTInitializationFailureReasonInternalInconsistency,
    /**
     * App instability has been detected, so initialization was aborted.
     * All subsequent initialization attempts will be blocked until the app is restarted.
     * This is a safety mechanism to prevent further instability and potential crashes.
     */
    SENTInitializationFailureReasonAppInstabilityDetected,
};
```


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