Payment methods appearing and disappearing at POS checkout

Retail & Point of Sale

Topic summary

A Shopify POS user experienced intermittent availability of payment methods during a busy sales day. Custom payment methods configured for an external debit/credit terminal randomly disappeared from the checkout screen, forcing staff to select cash and disrupting transaction records.

Key Issues:

  • Payment options “flickered” on and off throughout the afternoon
  • Both custom payment methods and the standard Split Transactions feature temporarily vanished
  • Problem occurred despite stable 3gbps internet connection

Technical Details:

  • Shopify POS version 9.2525.0
  • iPadOS 16.6.1

Attempted Solutions:
One respondent suggested toggling the POS hardware offline/online to reset cached settings and manually enabling custom payment methods in POS settings. However, the original poster clarified that custom payment methods cannot be manually forced in POS—only built-in credit/debit and cash options have that capability.

Current Status:
The issue appeared to stabilize temporarily, but remains unresolved with no confirmed root cause or permanent fix identified.

Summarized with AI on October 26. AI used: claude-sonnet-4-5-20250929.
1

It’s a busy Canadian long-weekend sales day (June 28) and Shopify POS has decided to randomly remove payment options:

At first, a “custom payment method” we set up for our external debit/credit terminal disappeared from the payment methods screen at checkout, forcing us to select cash, which obviously screws up our paperwork big time.

Then the option came back, however the standard Split Transactions option then disappeared. Luckily we haven’t had to use that today. It has also now come back, for the moment.

The availability of our payment methods has been “flickering”, so to speak, all afternoon.

Anyone else experiencing this?

Shopify POS version 9.2525.0
iPadOS 16.6.1

Our internet is 3gbps up/down

2

Hi @sucralose

This is like one clumsy step between the POS app and the Shopify servers. Quick fix: Switch your POS hardware offline and back online to reset cached settings. Moreover, manually turn ON your custom payment method from POS settings to make visibility stable in peak time.

3

Thanks for your reply!

There’s actually no option to manually force the custom payment methods in the POS, you can only check on the “built-in” credit/debit and cash. At the moment it seems to be stable, however, so I’m hoping the problem does not pop up again.