When iPhone is locked or sleep mode and having in coming call the watch does not let me know. I do get notifications for message

Hi

If your Apple Watch is not providing alerts for incoming calls, the following steps may help:

If you have not yet done so, update your iPhone and Apple Watch to the latest software, starting with your iPhone:

• Update the iOS software on your iPhone, iPad, or iPod touch - Apple Support
• Update the software on your Apple Watch - Apple Support

Check your settings:

• On your iPhone in the Watch app, go to: My Watch > General > Wrist Detection - turn this on.
  • Note that Wrist Detection can be affected by temporary or permanent skin changes, such as by some wrist tattoos.
• If Passcode is enabled, check that you are unlocking your watch each day after placing it on your wrist and that you are wearing your watch sufficiently snugly (your watch may otherwise believe that it has been removed from your wrist).
• Check that Do Not Disturb mode is not enabled on your watch:
  • When viewing the time on your watch, swipe up to open Control Centre.
  • Tap the Do Not Disturb button (crescent moon icon) to toggle the setting on / off.
• On your iPhone, in the Watch app, go to: My Watch > Sounds & Haptics:
  • Check that the Alert Volume is towards the centre or right hand side;
  • Check that Silent Mode is not enabled;
  • Check that Haptic Strength is set to the middle or far right hand side of the slider.
• On your iPhone, in the Watch app, go to: My Watch > Phone:
  • Perhaps choose Custom and check that all desired options are enabled, including Sound and Haptic under the Ringtone heading.

Restart both your iPhone and your watch, turning both devices off together, then restarting your iPhone first:

• Restart your iPhone, iPad, or iPod touch - Apple Support
• Restart your Apple Watch - Apple Support

If the issue persists, it may help to unpair and re-pair your watch:

• The Watch app on your iPhone takes a backup of your watch automatically when unpairing via the app. Choose to Restore from Backup during set up. Most data and settings will be restored, with some exceptions (eg Apple Pay cards, passcode).
• Unpair your Apple Watch and iPhone - Apple Support
• Set up your Apple Watch - Apple Support

You're most welcome! 🙂