Order and payment states
Map pending, confirmed, failed, and refunded states to the provider contract. Define which evidence permits service delivery.
Payment and business system integration
Payment and business systems that work together.
Connect payments to orders, reconciliation, and service delivery. Start with one supported network or provider, then extend after validating payment status, duplicate callbacks, failure recovery, and operator handoff.
01
From payment event to completed order
Agree one initial network or provider, supported currencies, and customer-owned accounts.
Reconciliation and recovery
Test duplicate and delayed callbacks, unmatched payments, retries, and interrupted delivery. Keep records that operators can reconcile.
Production handoff
Document credentials ownership, monitoring, deployment and rollback. Provider access, network readiness, and production authorization are separate prerequisites.
02
Integration deliverables
Connect payment status to a business outcome that an operator can verify.
State and interface map
Document order identifiers, provider references, supported currencies, confirmation rules, webhook verification and the system responsible for each state change.
Payment-to-delivery workflow
Implement agreed provider or wallet interfaces, idempotent event handling, order updates and entitlement or service-delivery actions, with retry rules.
Reconciliation and support records
Provide transaction-to-order lookup, unmatched-event handling, operator actions and support notes so payment evidence and delivered service can be checked together.
03
Scope the estimate before implementation
The pricing page lists a Payment and Business Integration MVP reference range of US$30,000–100,000+ over 6–16 weeks. It is an indicative full-project range, not a quote for every integration.
Providers, workflows and existing code
The number of providers and networks, existing order design, refund rules, settlement data, failure recovery and required operator tools affect cost and schedule.
Accounts and access
Confirm provider approval, sandbox and production access, existing API documentation, permitted currencies and operational owners. Payment processing and network fees are separate.
Evidence from a complete flow
Test a supported payment against the matching order and delivery outcome, then test duplicate, delayed and failed events. Sandbox evidence and production receipts are recorded separately.
Common project questions
Understand the engagement before requesting a quote.
Can payment integration be part of a new DApp?
Yes. The DApp engagement can include wallet and application development, while payment integration defines the order, reconciliation and delivery workflow. Both scopes share explicit acceptance criteria.
Can you connect an existing application?
Yes, after reviewing the provider API, existing order states, authentication, data model and access available to the project. Start with one provider or network and one business flow.
Does a payment success screen prove that an order was delivered?
No. The integration verifies provider or network evidence and the resulting order and delivery state. A checkout page, transaction submission or UI label alone is not delivery evidence.
Does DAPPWEB hold customer funds?
This service covers software integration. Provider accounts and wallets remain customer-owned, and the project defines who authorizes financial operations. DAPPWEB does not provide custody or operate payment accounts for clients.
Turn the brief into a clear delivery scope
Share the workflow, existing systems and launch target to start the assessment.