Good morning. I am a developer for a wider company and on our Shopify account we have different stores. On one of those I am testing the Checkout API to get a sales channel with payments. It's all good except the payments bit. According to this guide
"When you create a checkout, Shopify will return the merchant's shopify_payments_account_id."
Which is returned, but it is always null.
I have looked for similar problems on these pages and found many others, but none with a clear solution. Can anyone help please?