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A small documentation gap can create a major billing problem.
The field team completes additional work, but the approved change order does not reach the office in time. Later, the amount is added to the G703 breakout without proper documentation.
The result?
G703 no longer matches the approved SOV.
G702 contract totals become inconsistent.
The payment application gets rejected.
Billing is delayed.
Cash flow is affected.
The expensive mistakes in construction billing are often created between the field and the office—not inside the spreadsheet.
Have you seen this happen on a project?
#ConstructionAccounting #AIAbilling #G702 #G703 #ChangeOrders #JobCosting #ConstructionFinance #WIPReporting
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FORM PT Studio
Stockholm, Sweden
Built with Lovable for the Lovable Challenge x Contra
PROBLEM:
Traditional booking software stops at the booking confirmation. For studio owner Clara, the real work was the chaos that followed: late cancellations, awkward midday gaps, chasing payments at the door, and endless WhatsApp threads shuffling clients around.
SOLUTION:
FORM turns static scheduling into an autonomous, self-balancing studio.
PTs configure once
Coaches set availability, buffers and lunch windows. FORM works around them permanently.
Schedules heal themselves
A cancellation doesn't necessarily cause dead air. FORM automatically offers the slot to clients who preferred for example an earlier time, instantly shrinking the trainer's day with “You can finish an hour early today”.
Zero front-desk friction
Automated 12-hour attendance confirmations protect the schedule; seamless on-arrival payment check-ins eliminate front-desk admin.
Instant retention
Clients lock in regular training with weekly recurring bookings in one tap.
RESULT:
Owner actions required: 0. No approval queues, no triage, no interruptions. Clara watches her PT studio run itself.
A tracking update went out with the wrong carrier link.
A mapping mix-up between two courier integrations sent a customer to the wrong tracking page. Small, but confusing fixed by validating the carrier ID before every update sends.
→ A tiny mapping bug can undo an otherwise great automation.
That carrier ID check before each update stops the wrong link from slipping through.
I designed an automated Navision → n8n → Odoo → Peppol workflow. Navision generates a daily Excel export, which n8n automatically retrieves, parses, validates, and maps before using the Odoo API to create customer invoices with their corresponding invoice lines.
The workflow also includes error handling, logging, validation, secure API authentication, scheduling, and failure notifications. Once invoices are created in Odoo, its standard Peppol functionality handles electronic delivery to B2B customers.
The solution reduced manual invoice processing, created a more transparent and traceable workflow, and provided a scalable foundation for the company's transition from Navision to Odoo. It also prepared the invoicing process for Peppol e-invoicing while keeping Navision as the primary accounting system during the transition.
I'd want a reconciliation check between each daily Excel export and the invoices Odoo actually created. If one row fails after the others succeed, does the next run resume just that row?