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What’s your application ID and the checkout_id that’s not working? 
sq0idp-MHHCxCrIt-BapPtii7YhPA ----> Application ID
"payment_link": {
"id": "BOBRWFNGGP7BMELM",
"version": 1,
"order_id": "ICJ6x9dlHc4XGxpNdZbUg4dPbSaZY",
"url": "https://square.link/u/M84BduYu",
"long_url": "https://checkout.square.site/merchant/MLR57SG53JWAH/order/ICJ6x9dlHc4XGxpNdZbUg4dPbSaZY",
"created_at": "2024-04-02T15:36:45Z"
},
this is the response i can not able to make an payment using the paymnet link
Nothing looks out of sorts with this checkout. Do I have your permission to try and pay for this checkout with your provided information?
sq0idp-MHHCxCrIt-BapPtii7YhPA ----> Application ID
"payment_link": {
"id": "BOBRWFNGGP7BMELM",
"version": 1,
"order_id": "ICJ6x9dlHc4XGxpNdZbUg4dPbSaZY",
"url": "https://square.link/u/M84BduYu",
"long_url": "https://checkout.square.site/merchant/MLR57SG53JWAH/order/ICJ6x9dlHc4XGxpNdZbUg4dPbSaZY",
"created_at": "2024-04-02T15:36:45Z"
},
this is the response i can not able to make an payment using the paymnet link
Do I have your permission to try and pay for this checkout with your provided information?
Yes You can Try and Check why this payment is Not Occuring
Can we connect a live Chat is it easy to help each other?
Are you in the closed Delivery Beta? This is a restricted (closed) Beta. Request Beta access by completing the participation survey.
Beta access to the DELIVERY fulfillment type is for use cases other than performing deliveries on behalf of sellers. Developers seeking to perform deliveries on behalf of sellers need a formal partnership agreement. To become an app partner, submit a partnership request. The reason it’s failing is because of the fulfillment.