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Cash App payments arrive in your own Cash App account. SellAuth has no direct connection to Cash App and detects payments by reading the notification emails Cash App sends you. Once forwarding is set up, orders process automatically.
Cash App’s terms restrict personal accounts to personal payments, and accounts showing a commercial pattern are limited or closed. Keep a second payment method enabled so a closure does not stop the shop taking payments.

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Settings

Cashtag. Your $cashtag, shown to buyers on the payment page. Cash App e-mail. The address that receives your Cash App notifications. It must be the same address you forward from, since that is how forwarded mail is recognised. Override notes. SellAuth attaches a note to each payment so it can be matched to an invoice. You can replace the generated notes with your own comma-separated list. Notes that resemble ordinary personal transfers draw less attention than notes that read like a purchase. If you supply fewer notes than are needed, SellAuth combines them to produce more. Business plan only.

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Set up email forwarding

Payments are not detected until this is done. The steps below are for Gmail, and other providers have the same features under different names.
1

Add the forwarding address

In Gmail, open Settings > See all settings > Forwarding and POP/IMAP and click Add a forwarding address. Enter payments@sellauth.com.
2

Confirm the forwarding request

Gmail emails a confirmation to that address. SellAuth returns it to you automatically. Check your spam folder if it does not appear, then click the link inside to confirm.
3

Create a filter

Back in Forwarding and POP/IMAP, create a filter. In the From field enter cash@square.com, the address Cash App sends notifications from. Click Create filter.
4

Forward matching mail

Tick Forward it to and choose payments@sellauth.com. Create the filter.
5

Fill in the method settings

Enter your cashtag and the same email address you forward from, then save.
Use a filter rather than forwarding everything. A blanket rule sends your entire inbox to payments@sellauth.com, which is far more mail than the detection needs.

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Test it

Buy something cheap from your own shop and pay it with Cash App. The order should complete without any action from you. If it stays at Confirming, the forwarded email is not arriving.

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Troubleshooting

Orders never process. Forwarding was never confirmed, or the filter does not match. Check that Gmail lists payments@sellauth.com as a confirmed forwarding address, and that the filter’s From value matches the sender on a real Cash App notification. Some orders process, others do not. Check the amount and the note on the payment. A payment that does not match the order is not matched automatically, and has to be processed from the invoice page. The email address does not match. The address in the method settings must be the mailbox the forwarding comes from. Another address on the same account is not recognised. Cash App limited the account. This cannot be resolved from SellAuth. Enable another method, and see How to accept card payments.

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Next steps

Venmo

The same forwarding setup for Venmo.

Zelle

The same forwarding setup for Zelle bank notifications.

Supported payment methods

A second method to run alongside this one.