> ## Documentation Index > Fetch the complete documentation index at: https://developer.onetrust.com/llms.txt > Use this file to discover all available pages before exploring further. # When Consent Changes You may subscribe to OneTrust SDK events to be notified when consent or another interaction occurs. ## Subscribe to Events ```c# C# CMPSDK.sharedInstance.OneTrustEventsSubscription += SDK_Event_Handler; ``` ## Example Event Handler ```c // optional onetrust global event handlers private void SDK_Event_Handler(object sender, OneTrustEventArgs e) { switch (e.eventName) { case OneTrustEvent.EventNamesEnum.banner_reject_onClick: { } break; case OneTrustEvent.EventNamesEnum.banner_accept_onClick: { } break; case OneTrustEvent.EventNamesEnum.banner_closeButton_onClick: { } break; case OneTrustEvent.EventNamesEnum.vendor_rejectAll_onClick: { } break; case OneTrustEvent.EventNamesEnum.vendor_acceptAll_onClick: { } break; case OneTrustEvent.EventNamesEnum.vendor_saveChanges_onClick: { } break; case OneTrustEvent.EventNamesEnum.prefCenter_rejectAll_onClick: { } break; case OneTrustEvent.EventNamesEnum.prefCenter_acceptAll_onClick: { } break; case OneTrustEvent.EventNamesEnum.prefCenter_saveChanges_onClick: { } break; case OneTrustEvent.EventNamesEnum.cmp_vendorListDataAvail: { } break; case OneTrustEvent.EventNamesEnum.consentProfile_newValuesAvailable: { //System.Diagnostics.Debug.WriteLine("***** UPDATED PROFILE ******"); //JArray profile = CMPSDK.sharedInstance.getSavedConsentProfile(); //System.Diagnostics.Debug.WriteLine(profile.ToString(Newtonsoft.Json.Formatting.Indented)); System.Diagnostics.Debug.WriteLine("***** IABUSPrivacy_String ******"); string ccpaString = Microsoft.Maui.Storage.Preferences.Get(OTCoreConstants.CCPA_Key, ""); System.Diagnostics.Debug.WriteLine("IABUSPrivacy_String: " + ccpaString); System.Diagnostics.Debug.WriteLine("***** OneTrust_lastConsentDate UTC ******"); string OneTrust_lastConsentDate = Microsoft.Maui.Storage.Preferences.Get("OneTrust_lastConsentDate", "0"); DateTime lastConsentDate = new DateTime(long.Parse(OneTrust_lastConsentDate)); System.Diagnostics.Debug.WriteLine(lastConsentDate.ToUniversalTime().ToString("F")); if (Microsoft.Maui.Storage.Preferences.ContainsKey("IABGPP_HDR_GppString")) { System.Diagnostics.Debug.WriteLine("***** IABGPP_HDR_GppString ******"); string gppString = Microsoft.Maui.Storage.Preferences.Get("IABGPP_HDR_GppString", ""); System.Diagnostics.Debug.WriteLine("IABGPP_HDR_GppString: " + gppString); System.Diagnostics.Debug.WriteLine("***** IABGPP_HDR_Version ******"); int gppHdr = Microsoft.Maui.Storage.Preferences.Get("IABGPP_HDR_Version", 0); System.Diagnostics.Debug.WriteLine("IABGPP_HDR_Version: " + gppHdr); System.Diagnostics.Debug.WriteLine("***** IABGPP_HDR_Sections ******"); string gppHdrSections = Microsoft.Maui.Storage.Preferences.Get("IABGPP_HDR_Sections", ""); System.Diagnostics.Debug.WriteLine("IABGPP_HDR_Sections: " + gppHdrSections); System.Diagnostics.Debug.WriteLine("***** IABGPP_GppSID ******"); string gppActiveSections = Microsoft.Maui.Storage.Preferences.Get("IABGPP_GppSID", ""); System.Diagnostics.Debug.WriteLine("IABGPP_GppSID: " + gppActiveSections); var usnatString = Microsoft.Maui.Storage.Preferences.Get("IABGPP_7_String", null); if (!string.IsNullOrEmpty(usnatString)) { System.Diagnostics.Debug.WriteLine("***** IABGPP_7_String ******"); System.Diagnostics.Debug.WriteLine("IABGPP_7_String: " + usnatString); } var uscaString = Microsoft.Maui.Storage.Preferences.Get("IABGPP_8_String", null); if (!string.IsNullOrEmpty(uscaString)) { System.Diagnostics.Debug.WriteLine("***** IABGPP_8_String ******"); System.Diagnostics.Debug.WriteLine("IABGPP_8_String: " + uscaString); } var usvaString = Microsoft.Maui.Storage.Preferences.Get("IABGPP_9_String", null); if (!string.IsNullOrEmpty(usvaString)) { System.Diagnostics.Debug.WriteLine("***** IABGPP_9_String ******"); System.Diagnostics.Debug.WriteLine("IABGPP_9_String: " + usvaString); } var uscoString = Microsoft.Maui.Storage.Preferences.Get("IABGPP_10_String", null); if (!string.IsNullOrEmpty(uscoString)) { System.Diagnostics.Debug.WriteLine("***** IABGPP_10_String ******"); System.Diagnostics.Debug.WriteLine("IABGPP_10_String: " + uscoString); } var usutString = Microsoft.Maui.Storage.Preferences.Get("IABGPP_11_String", null); if (!string.IsNullOrEmpty(usutString)) { System.Diagnostics.Debug.WriteLine("***** IABGPP_11_String ******"); System.Diagnostics.Debug.WriteLine("IABGPP_11_String: " + usutString); } var usctString = Microsoft.Maui.Storage.Preferences.Get("IABGPP_12_String", null); if (!string.IsNullOrEmpty(usctString)) { System.Diagnostics.Debug.WriteLine("***** IABGPP_12_String ******"); System.Diagnostics.Debug.WriteLine("IABGPP_12_String: " + usctString); } } } break; case OneTrustEvent.EventNamesEnum.cmp_uploadReceiptAvail: { } break; case OneTrustEvent.EventNamesEnum.cmp_unrecoverableError: { //System.Diagnostics.Debug.WriteLine(e.exception.ToString()); //System.Diagnostics.Debug.WriteLine(e.eventPropertybag.ToString()); } break; case OneTrustEvent.EventNamesEnum.cmp_gotErrorButWillRetry: { //System.Diagnostics.Debug.WriteLine(e.exception.ToString()); //System.Diagnostics.Debug.WriteLine(e.eventPropertybag.ToString()); } break; case OneTrustEvent.EventNamesEnum.cmp_TCFV2StringAvail: { System.Diagnostics.Debug.WriteLine("***** TCFV2 String ******"); System.Diagnostics.Debug.WriteLine(e.eventPropertybag.ToString()); } break; case OneTrustEvent.EventNamesEnum.cmp_IABTCF_AddtlConsentAvail: { System.Diagnostics.Debug.WriteLine("***** cmp_IABTCF_AddtlConsent String ******"); System.Diagnostics.Debug.WriteLine(e.eventPropertybag.ToString()); } break; case OneTrustEvent.EventNamesEnum.cmp_SDKConsentValuesChanged: { JObject SDKsThatChanged = e.eventPropertybag; System.Diagnostics.Debug.WriteLine("***** cmp_SDKConsentValuesChanged event ******"); System.Diagnostics.Debug.WriteLine(SDKsThatChanged.ToString(Newtonsoft.Json.Formatting.Indented)); } break; default: break; } } ``` ## Event Types | Event Name | Description | | ---------------------------------- | ----------------------------------------------------------------------------------- | | banner\_reject\_onClick | Activates when Banner > **Reject All** button is clicked. | | banner\_accept\_onClick | Activates when Banner > **Accept All** button is clicked. | | banner\_closeButton\_onClick | Activates when Banner > **Close** button is clicked. | | vendor\_rejectAll\_onClick | Activates when Vendor List > **Reject All** button is clicked. | | vendor\_acceptAll\_onClick | Activates when Vendor List > **Reject All** button is clicked. | | vendor\_saveChanges\_onClick | Activates when Vendor List > **Confirm Choices** button is clicked. | | prefCenter\_rejectAll\_onClick | Activates when Preference Center > **Reject All** button is clicked. | | prefCenter\_acceptAll\_onClick | Activates when Preference Center > **Accept All** button is clicked. | | prefCenter\_saveChanges\_onClick | Activates when Preference Center > **Confirm Choices** button is clicked. | | cmp\_vendorListDataAvail | Activates when vendor list data has downloaded successfully. | | consentProfile\_newValuesAvailable | Activates when the consent profile for the user has been updated. | | cmp\_uploadReceiptAvail | Activates when a consent receipt has been uploaded. | | cmp\_unrecoverableError | Activates when a fatal error has occurred and five retries have taken place. | | cmp\_gotErrorButWillRetry | Activates when a network error has occurred but the SDK will attempt again. | | cmp\_TCFV2StringAvail | Activates when the **TCF v2** string has been updated. | | cmp\_IABTCF\_AddtlConsentAvail | Activates when the **Google Additional Consent** string has been updated. | | cmp\_SDKConsentValuesChanged | Activates only when a user's interaction causes the SDK's consent status to change. | | cmp\_profileManagementWarning | Activates when any of the user profile conditions change. | ### SDKConsentValuesChanged Payload ```json JSON { "sdk_status_changes": [ { "sdk_SdkId": "04fdbe70-2650-401b-95d7-4ac00ed57c39", "sdk_Name": "nsdk1", "sdk_Description": "test", "sdk_status": "active", "parent_OptanonGroupId": "C0001", "parent_GroupNameMobile": "Strictly Necessary Cookies", "parent_Status": "active" }, { "sdk_SdkId": "f7359c72-17bf-4466-8977-64bef9e855f6", "sdk_Name": "sdk114", "sdk_Description": "TEST 1", "sdk_status": "active", "parent_OptanonGroupId": "C0001", "parent_GroupNameMobile": "Strictly Necessary Cookies", "parent_Status": "active" } ] } ``` ### profileManagementWarning Payload ```json { "id": 1000, "message": "Multi Profile Consent is disabled. Please enable Multi Profile Consent from OneTrust Admin." } ``` ### profileManagmentWarning Message Codes | Id | Message | | ---- | ------------------------------------------------------------------------------------------------------ | | 1000 | Multi Profile Consent is disabled. Please enable Multi Profile Consent from OneTrust Admin. | | 1001 | Max number of profiles already created. Please delete one of the profiles to be able to add a new one. | | 1003 | Deleted Active Profile for DSID, now switching to anonymous profile. | | 1004 | Deleted Stored Profile for DSID. | | 1005 | Stored Profile for DSID not found. Nothing to delete. | | 1006 | Loading anonymous profile: DSID. | | 1007 | Loading known user profile: DSID. | | 1008 | Anonymous profile NOT found. Please pass a valid user ID to update. | | 1009 | Two users cannot have the same user ID. Thus, pass a unique user ID. | | 1010 | No user profile found with ID XXX. Please pass a valid user ID to update. | | 1011 | Successfully renamed profile from DSID to DSID. | ## Querying for Consent Use the following method to query for consent: | Method Name | Description | | --------------------------------------------------------------------- | ----------------------------------------------------- | | CMPSDK.sharedInstance.getConsentStatusForCategory(String categoryId); | Returns the consent status for the provided category. | When querying for consent status, the status will be returned as an integer: | Value | Meaning | | ----- | ---------------------------------------------------------------------------------------------------------------------------------- | | `1` | Consent is given (An end-user interacts with the SDK and gives consent.) | | `0` | Consent is not given (An end-user interacts and does not give consent.) | | `-1` | Consent has not been collected (The SDK is not yet initialized for the end-user or there are no SDKs associated to this category.) | ## Listen for Consent Updates To listen for consent updates, simply include the querying function inside of the **consentProfile\_newValuesAvailable** event handler.