Billing generated in a legacy telecom system, disconnected from the ERP. Collections triggered by stale fields (not the real invoice), no central financial view, and risk of any mass recompute stalling operations for a large customer base.
Proprietary module syncing billing between the legacy system and Odoo, with BI fields (days overdue, open balance, overdue invoice count) computed and stored in the ERP. Collection candidates selected from real invoices — not stale fields —, batched rollout with canary testing and backup before any production mutation.
This case remains public in narrative-only mode while quantitative metrics and outcome claims undergo evidence review.