diff --git a/native/account/fullscreen-siwe-panel.react.js b/native/account/fullscreen-siwe-panel.react.js
index 2b71000b7..ffa74c805 100644
--- a/native/account/fullscreen-siwe-panel.react.js
+++ b/native/account/fullscreen-siwe-panel.react.js
@@ -1,81 +1,81 @@
 // @flow
 
 import * as React from 'react';
 import { ActivityIndicator, View } from 'react-native';
 
 import { setDataLoadedActionType } from 'lib/actions/client-db-store-actions.js';
 import type { SIWEResult } from 'lib/types/siwe-types.js';
 import { useDispatch } from 'lib/utils/redux-utils.js';
 
 import { useSIWEServerCall } from './siwe-hooks.js';
 import SIWEPanel from './siwe-panel.react.js';
 import Alert from '../utils/alert.js';
 
 type Props = {
   +goBackToPrompt: () => mixed,
   +closing: boolean,
 };
 function FullscreenSIWEPanel(props: Props): React.Node {
   const [loading, setLoading] = React.useState(true);
 
   const activity = loading ? <ActivityIndicator size="large" /> : null;
 
   const activityContainer = React.useMemo(
     () => ({
       flex: 1,
     }),
     [],
   );
 
   const { goBackToPrompt } = props;
   const siweServerCallParams = React.useMemo(() => {
     const onServerCallFailure = () => {
       Alert.alert(
         'Unknown error',
         'Uhh... try again?',
         [{ text: 'OK', onPress: goBackToPrompt }],
         { cancelable: false },
       );
     };
     return { onFailure: onServerCallFailure };
   }, [goBackToPrompt]);
   const siweServerCall = useSIWEServerCall(siweServerCallParams);
 
   const successRef = React.useRef(false);
   const dispatch = useDispatch();
   const onSuccess = React.useCallback(
     async (result: SIWEResult) => {
       successRef.current = true;
-      await siweServerCall(result);
+      await siweServerCall({ ...result, doNotRegister: true });
       dispatch({
         type: setDataLoadedActionType,
         payload: {
           dataLoaded: true,
         },
       });
     },
     [siweServerCall, dispatch],
   );
 
   const ifBeforeSuccessGoBackToPrompt = React.useCallback(() => {
     if (!successRef.current) {
       goBackToPrompt();
     }
   }, [goBackToPrompt]);
 
   const { closing } = props;
   return (
     <>
       <View style={activityContainer}>{activity}</View>
       <SIWEPanel
         closing={closing}
         onClosed={ifBeforeSuccessGoBackToPrompt}
         onClosing={ifBeforeSuccessGoBackToPrompt}
         onSuccessfulWalletSignature={onSuccess}
         setLoading={setLoading}
       />
     </>
   );
 }
 
 export default FullscreenSIWEPanel;
diff --git a/native/account/registration/existing-ethereum-account.react.js b/native/account/registration/existing-ethereum-account.react.js
index bc94db56c..fc2a6c698 100644
--- a/native/account/registration/existing-ethereum-account.react.js
+++ b/native/account/registration/existing-ethereum-account.react.js
@@ -1,140 +1,140 @@
 // @flow
 
 import * as React from 'react';
 import { Text, View } from 'react-native';
 
 import { setDataLoadedActionType } from 'lib/actions/client-db-store-actions.js';
 import { siweAuthActionTypes } from 'lib/actions/siwe-actions.js';
 import { useENSName } from 'lib/hooks/ens-cache.js';
 import { createLoadingStatusSelector } from 'lib/selectors/loading-selectors.js';
 import type { SIWEResult } from 'lib/types/siwe-types.js';
 import { useDispatch } from 'lib/utils/redux-utils.js';
 
 import RegistrationButtonContainer from './registration-button-container.react.js';
 import RegistrationButton from './registration-button.react.js';
 import RegistrationContainer from './registration-container.react.js';
 import RegistrationContentContainer from './registration-content-container.react.js';
 import type { RegistrationNavigationProp } from './registration-navigator.react.js';
 import type { NavigationRoute } from '../../navigation/route-names.js';
 import { useSelector } from '../../redux/redux-utils.js';
 import { useStyles } from '../../themes/colors.js';
 import Alert from '../../utils/alert.js';
 import { useSIWEServerCall } from '../siwe-hooks.js';
 
 const siweAuthLoadingStatusSelector =
   createLoadingStatusSelector(siweAuthActionTypes);
 
 export type ExistingEthereumAccountParams = SIWEResult;
 
 type Props = {
   +navigation: RegistrationNavigationProp<'ExistingEthereumAccount'>,
   +route: NavigationRoute<'ExistingEthereumAccount'>,
 };
 function ExistingEthereumAccount(props: Props): React.Node {
   const siweServerCallParams = React.useMemo(() => {
     const onServerCallFailure = () => {
       Alert.alert('Unknown error', 'Uhh... try again?', [{ text: 'OK' }], {
         cancelable: false,
       });
     };
     return { onFailure: onServerCallFailure };
   }, []);
   const siweServerCall = useSIWEServerCall(siweServerCallParams);
 
   const { params } = props.route;
   const dispatch = useDispatch();
   const onProceedToLogIn = React.useCallback(async () => {
-    await siweServerCall(params);
+    await siweServerCall({ ...params, doNotRegister: true });
     dispatch({
       type: setDataLoadedActionType,
       payload: {
         dataLoaded: true,
       },
     });
   }, [siweServerCall, params, dispatch]);
 
   const siweAuthCallLoading = useSelector(
     state => siweAuthLoadingStatusSelector(state) === 'loading',
   );
 
   const { address } = params;
   const walletIdentifier = useENSName(address);
   const walletIdentifierTitle =
     walletIdentifier === address ? 'Ethereum wallet' : 'ENS name';
 
   const { goBack } = props.navigation;
   const styles = useStyles(unboundStyles);
   return (
     <RegistrationContainer>
       <RegistrationContentContainer>
         <Text style={styles.header}>Account already exists for wallet</Text>
         <Text style={styles.body}>
           You can proceed to log in with this wallet, or go back and use a
           different wallet.
         </Text>
         <View style={styles.walletTile}>
           <Text style={styles.walletIdentifierTitleText}>
             {walletIdentifierTitle}
           </Text>
           <View style={styles.walletIdentifier}>
             <Text style={styles.walletIdentifierText} numberOfLines={1}>
               {walletIdentifier}
             </Text>
           </View>
         </View>
       </RegistrationContentContainer>
       <RegistrationButtonContainer>
         <RegistrationButton
           onPress={onProceedToLogIn}
           label="Log in to account"
           variant={siweAuthCallLoading ? 'loading' : 'enabled'}
         />
         <RegistrationButton
           onPress={goBack}
           label="Use a different wallet"
           variant="outline"
         />
       </RegistrationButtonContainer>
     </RegistrationContainer>
   );
 }
 
 const unboundStyles = {
   header: {
     fontSize: 24,
     color: 'panelForegroundLabel',
     paddingBottom: 16,
   },
   body: {
     fontFamily: 'Arial',
     fontSize: 15,
     lineHeight: 20,
     color: 'panelForegroundSecondaryLabel',
     paddingBottom: 40,
   },
   walletTile: {
     backgroundColor: 'panelForeground',
     borderRadius: 8,
     padding: 24,
     alignItems: 'center',
   },
   walletIdentifierTitleText: {
     fontSize: 17,
     color: 'panelForegroundLabel',
     textAlign: 'center',
   },
   walletIdentifier: {
     backgroundColor: 'panelSecondaryForeground',
     paddingVertical: 8,
     paddingHorizontal: 24,
     borderRadius: 56,
     marginTop: 8,
     alignItems: 'center',
   },
   walletIdentifierText: {
     fontSize: 15,
     color: 'panelForegroundLabel',
   },
 };
 
 export default ExistingEthereumAccount;
diff --git a/native/account/siwe-hooks.js b/native/account/siwe-hooks.js
index 54f7de476..ff3ef5337 100644
--- a/native/account/siwe-hooks.js
+++ b/native/account/siwe-hooks.js
@@ -1,109 +1,114 @@
 // @flow
 
 import * as React from 'react';
 
 import { siweAuth, siweAuthActionTypes } from 'lib/actions/siwe-actions.js';
 import { useInitialNotificationsEncryptedMessage } from 'lib/shared/crypto-utils.js';
 import type {
   LogInStartingPayload,
   LogInExtraInfo,
 } from 'lib/types/account-types.js';
 import {
   useServerCall,
   useDispatchActionPromise,
 } from 'lib/utils/action-utils.js';
 import type { CallServerEndpointOptions } from 'lib/utils/call-server-endpoint.js';
 
 import { NavContext } from '../navigation/navigation-context.js';
 import { useSelector } from '../redux/redux-utils.js';
 import { nativeLogInExtraInfoSelector } from '../selectors/account-selectors.js';
 import { nativeNotificationsSessionCreator } from '../utils/crypto-utils.js';
 
 type SIWEServerCallParams = {
   +message: string,
   +signature: string,
+  +doNotRegister?: boolean,
   ...
 };
 type UseSIWEServerCallParams = {
   +onFailure: () => mixed,
 };
 function useSIWEServerCall(
   params: UseSIWEServerCallParams,
 ): (SIWEServerCallParams, ?CallServerEndpointOptions) => Promise<void> {
   const { onFailure } = params;
 
   const siweAuthCall = useServerCall(siweAuth);
 
   const callSIWE = React.useCallback(
     async (
       message: string,
       signature: string,
-      extraInfo: LogInExtraInfo,
+      extraInfo: $ReadOnly<{ ...LogInExtraInfo, +doNotRegister?: boolean }>,
       callServerEndpointOptions: ?CallServerEndpointOptions,
     ) => {
       try {
         return await siweAuthCall(
           {
             message,
             signature,
             ...extraInfo,
           },
           callServerEndpointOptions,
         );
       } catch (e) {
         onFailure();
         throw e;
       }
     },
     [onFailure, siweAuthCall],
   );
 
   const navContext = React.useContext(NavContext);
   const logInExtraInfo = useSelector(state =>
     nativeLogInExtraInfoSelector({
       redux: state,
       navContext,
     }),
   );
 
   const getInitialNotificationsEncryptedMessage =
     useInitialNotificationsEncryptedMessage(nativeNotificationsSessionCreator);
 
   const dispatchActionPromise = useDispatchActionPromise();
   return React.useCallback(
-    async ({ message, signature }, callServerEndpointOptions) => {
+    async (
+      { message, signature, doNotRegister },
+      callServerEndpointOptions,
+    ) => {
       const extraInfo = await logInExtraInfo();
       const initialNotificationsEncryptedMessage =
         await getInitialNotificationsEncryptedMessage({
           callServerEndpointOptions,
         });
 
       const siwePromise = callSIWE(
         message,
         signature,
         {
           ...extraInfo,
           initialNotificationsEncryptedMessage,
+          doNotRegister,
         },
         callServerEndpointOptions,
       );
 
       void dispatchActionPromise(
         siweAuthActionTypes,
         siwePromise,
         undefined,
         ({ calendarQuery: extraInfo.calendarQuery }: LogInStartingPayload),
       );
 
       await siwePromise;
     },
     [
       logInExtraInfo,
       dispatchActionPromise,
       callSIWE,
       getInitialNotificationsEncryptedMessage,
     ],
   );
 }
 
 export { useSIWEServerCall };