Financial services use case · PayPal + Xero + ServiceNow
PayPal payment exception to service case
Payment mismatches are found in accounting and resolved by email without a case or approval. PayPal payment and subscription mismatches become approved, recorded corrections.
Architecture
One governed run
How it starts: A webhook, HTTP poll or schedule starts the run. PayPal has no trigger source in Nexus.
Step by step
How the process runs
- 01
Payment context
PayPal transactions, payouts and subscriptions are read.
- 02
Accounting check
Xero payments, bank transactions and invoices are compared.
- 03
Exception case
Mismatches open a ServiceNow ticket, or an incident for wide impact.
- 04
Correct
Approved corrections are recorded in Xero.
Control
Human decision and exception path
Human decision
Finance approves corrections and any payout action before it runs.
Exception path
- Missing transactions route to finance.
- Duplicate payouts are blocked.
- API errors are retried.
Evidence
What gets audited
- PayPal data.
- Comparison.
- Case and approval.
- Xero reference.
Nexus runs on premises, in private or sovereign cloud, or air-gapped. Credentials stay in the vault, roles decide who can approve, and the execution record stays inside your deployment boundary.
Sovereignty and deploymentRelated
Patterns, connectors and next steps
- Stripe-Xero integration
Integration pattern · Billing events become reconciled accounting entries with exceptions reviewed.
- PayPal connector
25 pre-built actions
- Xero connector
41 pre-built actions
- ServiceNow connector
55 pre-built actions
- Human-in-the-loop
Where approval belongs in a running workflow.
- Lead to account and ERP handoff
Another financial services use case.
FAQ
Questions about this use case
- Does Nexus replace any of these systems?
- No. Each system keeps its own records. Nexus runs the process between them and records each decision.
- How does the run start?
- A webhook, HTTP poll or schedule starts the run. PayPal has no trigger source in Nexus.
- What if a step is not covered by a pre-built action?
- It runs through an API, protocol or database call, or as Rules + Code in Python, Bash, Go, Java, .NET, PHP, PowerShell or JavaScript/TypeScript, with the same approvals and audit.
Use case review
Discuss this use case
Bring your version of the process. We will map the systems, approvals and evidence it needs.