Link is not opened as instant app in some devices

Question

I had published my instant app in play store. when i click the link from gmail it opens as instant app in some devices (Samsung s6 note ,moto g4 plus)

In some devices its not working ,but those devices has Settings->Google->Instant Apps option. but the instant app is not working.

my digital asset link is https://abdcoop.mybuzztm.com/.well-known/assetlinks.json

Anyone able to suggest what i am missing?

I have added my log.

I/Timeline: Timeline: Activity_launch_request time:74970969
I/ActivityManager: START u0 {act=android.intent.action.VIEW dat=https://www.google.com/... pkg=com.android.chrome cmp=com.android.chrome/com.google.android.apps.chrome.Main (has extras)} from uid 10087 on display 0
D/WtProcessController: onAMCreateActivity callback
D/ActivityTrigger: ActivityTrigger activityPauseTrigger 
E/ANDR-PERF-MPCTL: Invalid profile no. 0, total profiles 0 only
E/ActivityManager: Invalid thumbnail dimensions: 0x0
D/PowerManagerService: acquireWakeLockInternal: lock=176192276, flags=0x1, tag="*launch*", ws=WorkSource{10059}, uid=1000, pid=1562
D/PowerManagerService: updateWakeLockSummaryLocked: mWakefulness=Awake, mWakeLockSummary=0x1
D/PowerManagerService: updateUserActivitySummaryLocked: mWakefulness=Awake, mUserActivitySummary=0x1, nextTimeout=2222436507 (in 2147465528 ms)
D/WtProcessController: onAMPauseActivity callback
I/art: Note: end time exceeds epoch: 
I/art: Note: end time exceeds epoch: 
D/WtProcessController: onAMRestartActivity callback
D/WtProcessController: set foreground process size 2 pid:10443pacakgeName:com.android.chrome
I/Timeline: Timeline: App_transition_ready time:74971012
D/ConnectivityService: listenForNetwork for Listen from uid/pid:10059/10443 for NetworkRequest [ id=49, legacyType=-1, [ Capabilities: INTERNET&NOT_RESTRICTED&TRUSTED] ]
I/cr_InstantAppsHandler: Not handling with Instant Apps
I/Timeline: Timeline: Activity_launch_request time:74971029
D/Babel: onCreate: Shutdown runnable posted in onCreate with a delay of 5000 ms.
W/AD-PLUGIN-AppInstallActivateManager: Two apps are same
I/ActivityManager: START u0 {act=android.intent.action.VIEW dat=https://www.google.com/... flg=0x800000 pkg=com.android.chrome cmp=com.android.chrome/org.chromium.chrome.browser.customtabs.CustomTabActivity (has extras)} from uid 10059 on display 0
I/Timeline: Timeline: App_transition_ready time:74971039
D/WtProcessController: onAMCreateActivity callback
D/ActivityTrigger: ActivityTrigger activityPauseTrigger 
D/PowerManagerService: acquireWakeLockInternal: lock=176192276, flags=0x1, tag="*launch*", ws=WorkSource{10059}, uid=1000, pid=1562
D/PowerManagerService: updateWakeLockSummaryLocked: mWakefulness=Awake, mWakeLockSummary=0x1
D/PowerManagerService: updateUserActivitySummaryLocked: mWakefulness=Awake, mUserActivitySummary=0x1, nextTimeout=2222436507 (in 2147465465 ms)
D/DisplayPowerController: requestPowerState: policy=BRIGHT, useProximitySensor=false, screenBrightness=102, screenAutoBrightnessAdjustment=0.96850395, brightnessSetByUser=true, useAutoBrightness=true, blockScreenOn=false, lowPowerMode=false, boostScreenBrightness=false, dozeScreenBrightness=-1, dozeScreenState=UNKNOWN, waitForNegativeProximity=false
D/PowerManagerService: updateDisplayPowerStateLocked: mDisplayReady=true, policy=3, mWakefulness=1, mWakeLockSummary=0x1, mUserActivitySummary=0x1, mBootCompleted=true, mScreenBrightnessBoostInProgress=false
D/WtProcessController: onAMPauseActivity callback
D/Babel: Idle: Shutdown runnable posted in release with a delay of 5000 ms.
D/ActivityThreadInjector: clearCachedDrawables.
D/wpa_supplicant: wlan0: Control interface command 'SIGNAL_POLL'
D/wpa_supplicant: CTRL-DEBUG: global_ctrl_sock-sendto: sock=11 sndbuf=229376 outq=0 send_len=48
D/WtProcessController: onAMRestartActivity callback
I/Timeline: Timeline: App_transition_ready time:74971054
D/WtProcessController: onAMDestroyActivity callback
D/PowerManagerService: releaseWakeLockInternal: lock=16046967 [hangouts_rtcs], flags=0x0
D/PowerManagerNotifier: onWakeLockReleased: flags=1, tag="hangouts_rtcs", packageName=com.google.android.talk, ownerUid=10087, ownerPid=10590, workSource=null
D/PowerManagerService: updateWakeLockSummaryLocked: mWakefulness=Awake, mWakeLockSummary=0x1
D/PowerManagerService: updateUserActivitySummaryLocked: mWakefulness=Awake, mUserActivitySummary=0x1, nextTimeout=2222436507 (in 2147465446 ms)
D/DisplayPowerController: requestPowerState: policy=BRIGHT, useProximitySensor=false, screenBrightness=102, screenAutoBrightnessAdjustment=0.96850395, brightnessSetByUser=true, useAutoBrightness=true, blockScreenOn=false, lowPowerMode=false, boostScreenBrightness=false, dozeScreenBrightness=-1, dozeScreenState=UNKNOWN, waitForNegativeProximity=false
D/PowerManagerService: updateDisplayPowerStateLocked: mDisplayReady=true, policy=3, mWakefulness=1, mWakeLockSummary=0x1, mUserActivitySummary=0x1, mBootCompleted=true, mScreenBrightnessBoostInProgress=false
D/Babel: Idle: Shutdown runnable posted in release with a delay of 5000 ms.
I/Babel_Conv: Conversation loader finished for Ugxb1fhtNlDEfBW1SlN4AaABAagBiKycDw, count# 1
V/BoostFramework: BoostFramework() : mPerf = com.qualcomm.qti.Performance@5d28c18
V/BoostFramework: BoostFramework() : mPerf = com.qualcomm.qti.Performance@3e52671
I/ActivityManager: Start proc 12361:com.android.chrome:sandboxed_process3/u0i10 for service com.android.chrome/org.chromium.content.app.SandboxedProcessService3
I/art: Late-enabling -Xcheck:jni
D/WtProcessController: onAMProcStart callback
W/cr_tabmodel: Starting to fetch tab list.
E/cr_tabmodel: State file does not exist.
W/Binder_8: type=1400 audit(0.0:477087): avc: denied { ioctl } for path="socket:[978012]" dev="sockfs" ino=978012 ioctlcmd=7704 scontext=u:r:system_server:s0 tcontext=u:r:system_server:s0 tclass=unix_stream_socket permissive=0
D/ActivityThreadInjector: clearCachedDrawables.
W/Binder_8: type=1400 audit(0.0:477088): avc: denied { ioctl } for path="socket:[978012]" dev="sockfs" ino=978012 ioctlcmd=7704 scontext=u:r:system_server:s0 tcontext=u:r:system_server:s0 tclass=unix_stream_socket permissive=0
I/Timeline: Timeline: App_transition_ready time:74971116
D/TidaProvider: TidaProvider()
I/art: Background partial concurrent mark sweep GC freed 10565(740KB) AllocSpace objects, 1(1600KB) LOS objects, 30% free, 36MB/52MB, paused 3.391ms total 139.710ms
I/Timeline: Timeline: App_transition_ready time:74971143
I/Timeline: Timeline: App_transition_ready time:74971145
W/System: ClassLoader referenced unknown path: /system/app/Chrome/lib/arm
I/Timeline: Timeline: App_transition_ready time:74971151
I/Timeline: Timeline: App_transition_ready time:74971154
W/dboxed_process3: type=1400 audit(0.0:477089): avc: denied { search } for name="tmp" dev="dm-1" ino=21 scontext=u:r:isolated_app:s0:c512,c768 tcontext=u:object_r:shell_data_file:s0 tclass=dir permissive=0
I/Timeline: Timeline: App_transition_ready time:74971166
I/cr_ChildProcessService: Creating new ChildProcessService pid=12361
I/ActivityManager: Displayed com.android.chrome/org.chromium.chrome.browser.customtabs.CustomTabActivity: +116ms (total +162ms)
V/PhoneStatusBarPolicy: updateManagedProfile mManagedProfileFocused: false mKeyguardVisible: false mCurrentUserId:0 mCurrentProfileId:0 mSecondSpaceStatusIconVisible: true showIcon:false

Answer 1

From the documentation it shows:

Android Instant Apps supports the latest Android devices from Android 6.0 (API level 23) through Android O, across more than 40 countries. We'll be rolling out to more devices and countries soon, including expanding support to Android 5.0 (API level 21) devices shortly.

So make sure your country is supported and the device contains Android Version 6 or more.(You can check this in the device). And if the device is Lollipop (Android 5.0). The functionality may have not been added yet, Though the Phone shows the Setting. So visit and stay in Touch with Android sources to check if the support feature has already been added to Lollipop devices yet!