Test environment

Everything you need to exercise the full flow in the sandbox (UAT). These are shared, sandbox-only values for development.

Sandbox only

These credentials and cards work only against connect.uat.paylaterapp.com. Never use them — or commit real production secrets — in a live integration.

Sandbox credentials

FieldValue
Base URLhttps://connect.uat.paylaterapp.com
Client IDmerchant-138
Client SecretM6Xjszdtd8X2XivLmUvS9Pa7Hm0JeA6g
Outlet ID1000000061

Test shoppers

The OTP for every test shopper is 1234.

MobileEmail
51118021qid8021@mailinator.com
51118022qid8022@mailinator.com
51118023qid8023@mailinator.com
51118024qid8024@mailinator.com
51118025qid8025@mailinator.com

Test cards

Success

SchemeNumberExpiryCVV
Mastercard5200 0000 0000 215110/2028237
Visa4000 0000 0000 250310/2028442
Mastercard (non-3DS)5200 0000 0000 000704/2026256

Failure

SchemeNumberExpiryCVV
Mastercard5200 0000 0000 249004/2028256
Visa4000 0000 0000 237006/2028256

Debit (NAPS)

NumberExpiryCVVOTP
4215 3755 0088 324306/2026123123456