Error handling
Your ad display delegate or callback interface receives a call if an ad fails to load or fails to display. An error code accompanies this call. This page describes these error codes.
Error object
The error that you receive in your callback is a first-class error object that implements MaxError.
This object has the following methods:
getCode()- Returns the error code, which you can find in the table below.
getMessage()- Returns a human-readable message that describes the error.
getMediatedNetworkErrorCode()- Returns the mediated network’s error code for the error. This is available only for errors returned in ad display failure callbacks.
getMediatedNetworkErrorMessage()- Returns the mediated network’s error message for the error. Defaults to an empty string. This is available only for errors returned in ad display failure callbacks.
getWaterfall()- Allows you to see information about the current waterfall for an ad. Network responses provide the ad load state, latency, credentials, and mediated network information for each ad in the waterfall. If an ad in the waterfall fails to load, the network response provides error information. You can learn more about this method in Advanced settings: Waterfall information API.
MAX error codes
| Code | Constant | Description | Load / Display |
|---|---|---|---|
| 204 | MaxErrorCode.NO_FILL | No ads are eligible for your device (no fill). MAX returned no eligible ads from any mediated networks for this app/device. | L |
| −1 | MaxErrorCode.UNSPECIFIED | The system is in an unexpected state. MAX could not categorize this state into one of the other defined errors. See the message field in the error object for more details. | L/D |
| −23 | MaxErrorCode.FULLSCREEN_AD_ALREADY_SHOWING | You attempt to show a fullscreen ad (interstitial or rewarded) while another fullscreen ad still shows. | D |
| −24 | MaxErrorCode.FULLSCREEN_AD_NOT_READY | You attempt to show a fullscreen ad before it has loaded. | D |
| −1000 | MaxErrorCode.NETWORK_ERROR | The ad request failed due to a generic network error. See the message field in the error object for more details. | L |
| −1001 | MaxErrorCode.NETWORK_TIMEOUT | The ad request timed out due to a slow internet connection. | L |
| −1009 | MaxErrorCode.NO_NETWORK | The ad request failed because the device is not connected to the internet. | L |
| −5001 | MaxErrorCode.AD_LOAD_FAILED | The ad failed to load because no networks can fill. MAX returned eligible ads from mediated networks, but all ads failed to load. Inspect MaxError.getWaterfall() for more details. | L |
| −5201 | MaxErrorCode.ERROR_CODE_INVALID_LOAD_STATE | The internal state of the SDK is invalid. | L |
| −5205 | MaxAdapterError.AD_NOT_READY | The adapter did not have an ad ready when attempting to display. | L |
| −5209 | MaxAdapterError.INTERNAL_ERROR | Unspecified internal error. | L |
| −5601 | MaxErrorCode.NO_ACTIVITY | The SDK failed to load an ad because it could not find the top Activity. | L |
| −5602 | MaxErrorCode.DONT_KEEP_ACTIVITIES_ENABLED | The SDK failed to display an ad because the user has the “Don’t Keep Activities” developer setting enabled. | D |
| −5603 | MaxErrorCode.INVALID_AD_UNIT_ID | The SDK failed to load an ad because the publisher provided an invalid ad unit identifier. Possible reasons:
| L |
Error codes from various networks
To better understand the error codes that ad networks return, see the error documentation pages published by those networks:
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