With one of my cards I ran into that when I didn’t have the bank app installed and logged in on my phone. Not sure how that has anything to do with it, but maybe try that? Answer from Deleted User on reddit.com
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Reddit
reddit.com › r/applewatch › how can i fix it? "could not set up apple pay. an error occurred while setting up apple pay."
r/AppleWatch on Reddit: How can I fix it? "Could not set up Apple Pay. An error occurred while setting up Apple Pay."
May 13, 2022 -

If Apple Can't help me, I believe in Reddit:

So... I bought an used Apple Watch Series 3 and the watch is perfect, but, the Wallet don't add cards to be used for Apple Pay.

When I try to add an card, this error appears: "Could not set up Apple Pay. An error occurred while setting up Apple Pay.*".*In my original language (Brazilian Portuguese): Não Pôde Configurar o Apple Pay. Ocorreu um erro durante a configuração do Apple Pay.

The Apple Care support don't know why this is happening and how to fix that. They think that "maybe" is a hardware problem. Conclusion: they can't and don't know how to help me.

(I already did the unpair, system restore... Nothing works).

Anyone know how can I fix that problem? 😥

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Apple Community
discussions.apple.com › thread › 255151437
Apple Pay on Apple Watch NOT Working Afte… - Apple Community
An error occurred while setting up Apple PAy" 1007 1 ... It works now!! I could not activate my new updated apple watch 8 with my updated iphone 11. I unpaired and re-paired as suggested by this thread and Apple Pay is now all set up on my apple watch 8 just like it was before on my Apple watch 5.
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Apple Community
discussions.apple.com › thread › 255155515
“Could not set up Apple Pay an error occu… - Apple Community
February 25, 2024 - Scroll down the article for instructions on force restarting your watch. Please pair both devices and try setting up Apple Pay.
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Apple Community
discussions.apple.com › thread › 253336355
Apple Pay not working on Apple Watch - Apple Community
We're happy to assist you with this. Yes, you can try removing the card to see if that helps any. You can also restart both your Apple Watch and iPhone first to see if that helps. If it doesn't, let's remove the card from your Apple Watch and add it back: Set up Apple Pay on Apple Watch
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Apple Support
support.apple.com › guide › watch › set-up-apple-pay-apd285b3ae01 › watchos
Set up Apple Pay on Apple Watch - Apple Support
Tap My Watch, then tap Wallet & Apple Pay. ... A new card or previous card: Tap Add Card, then follow the onscreen instructions.
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Apple Community
discussions.apple.com › thread › 253580821
Could not set up a Apple Pay on Apple Watch only
Watch Series 9 not bieng able to add credit card in Wallet Apple pay working with iPhone. SW updated to latest version in both watch and iphone. When trying to add a card in Apple Watch gives an error : "Could not set up Apple Pay.
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Apple Support
support.apple.com › en-us › 109015
Set up your Apple Watch - Apple Support
You need to enter the email address and password for that Apple Account to continue set up. If your Apple Watch was previously owned, you might need to contact the previous owner to remove Activation Lock. You can skip creating a passcode, but you need one for features like Apple Pay.
Published   4 days ago
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Apple Community
discussions.apple.com › thread › 251861557
"Could not set up Apple Pay, an error occ… - Apple Community
I had a second watch on my account (lost) that did have Apple Pay setup (but apparently disabled in “lost” mode) and I removed the watch from account with no change ... ... Well I never!!!! Read this whole thread few times and has done the change region and restart merry go round mor thins that I can remember. Then carefully re-read your post Askbarnabus and it WORKED. The devil is in the detail. Clicking the picture initiated the apple pay add process.
Find elsewhere
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MacRumors
forums.macrumors.com › apple wearables › apple watch
Cannot add cards to Apple pay on watch although they are available on iphone | MacRumors Forums
May 30, 2024 - I have tried most recommendations as follows: 1. Ensuring the right region on both the watch and phone. 2. Logging into and out of Apple ID 3. Unpairing and repairing the watch 4. Deleting the Apple Pay app on the watch and reinstalling it.
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Apple
support.apple.com › en-ca › 108398
Set up Apple Pay - Apple Support (CA)
Learn what to do if you can't add your card to Wallet · 1. Make sure that you sign in to iCloud on all your devices. On your iOS device, you need to set up Face ID, Touch ID, or a passcode.
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Tenorshare
tenorshare.com › iphone-tips › could-not-set-up-apple-pay.html
Could Not Set Up Apple Pay? Here're the Answers
October 22, 2020 - Similarly, you have to restart any other device you’re using to make payments, be it iPad, Mac, or Apple Watch. If you’re still facing the error: “could not set up apple pay cash”, you should remove and add the card again fix it.
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Strava
myhealthyapple.com › home › getting the error message “could not set up apple pay, an error...
Getting the error message "could not set up Apple Pay, an error occurred while setting up Apple Pay?"
September 5, 2023 - If you run into this error on your Apple Watch, first make sure that you turn on wrist detection and have a passcode set for your Apple Watch–these are two requirements to use Apple Pay on your Apple Watch.
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Apple Community
discussions.apple.com › thread › 255172751
Apple Pay on Apple Watch Ultra 2 not work… - Apple Community
the watch gat a passcode like the iPhone to unlock it and if you switch off passcode options then you can’t use Apple Pay on watches so yo I need to keep the fonction enable and then set up card and you good to go.
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Reddit
reddit.com › r/applewatch › can’t add apple pay to watch9
r/AppleWatch on Reddit: Can’t add Apple Pay to watch9
March 29, 2023 -

My first iPhone (15 pro) and Apple Watch 9, and it does not “just work”

All places below that say FAIL do so with a generic “Unable to set up Apple Pay” message, with no suggestions

  • Add card to Apple wallet on phone: Success

  • Add card to Apple Pay on watch: FAIL

  • Make sure both OS up to date

  • Reboot both devices

  • Add card from phone to watch: FAIL

  • Read support forums: already have passcode on watch, watch shows matching Apple ID in the Settings.

  • Remove and re-add card to phone wallet

  • Add card to watch: FAIL

  • Talk to tech support for 30 min while she asks me to do all of the above steps

  • While on hold, go to Settings, Click my logged in Apple ID, select Personal Information: FORCES me to log in to Apple ID again.

  • Add card from phone to watch: SUCCESS

🤦🤦‍♀️🤦‍♂️

Hope this helps anyone else that gets stuck with this same problem

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MacRumors
forums.macrumors.com › apple wearables › apple watch
Cannot Setup Apple Pay on Apple Watch Series 5 | MacRumors Forums
February 20, 2021 - I have a feeling something's wrong with syncing the account to the watch as iMessage and FaceTime are signed in however I cannot install apps from the watch's App Store or through the watch app on my phone. It prompts me to sign in through the watch app but it already is. Considering you need an Apple ID to set up Apple Pay I'm guessing it's going to be related to that
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Apple Community
discussions.apple.com › thread › 8612259
Could not Set Up Apple Pay An error occur… - Apple Community
November 3, 2018 - For your Apple Watch, open the ... Preferences > Language & Region, and check the region. You can't add Apple Pay Cash to your Mac. Restart your iPhone, iPad, Apple Watch, or Mac. Update to the latest version of iOS, watchOS, or macOS....