Event and wedding planners live in a world Odoo core was never shaped for. A single booking is really a package of venues, dates, headcounts, vendors, rented items, crew shifts and a payment plan that runs from deposit to final settlement — and out of the box Odoo has no object that represents "an event." Planners end up bolting the work onto crm.lead or sale.order, tracking venue availability in a shared spreadsheet, chasing florists and caterers over WhatsApp, and reconciling deposits by hand. Odoo Enterprise ships an event (conferences/tickets) app and appointment slots, but those model ticketed gatherings and calendar bookings, not a bespoke wedding with a bar-service vendor, a 12-person crew and three milestone invoices. That structural gap is where things fall through: double-booked halls, vendors who were never confirmed, and deposits nobody can tie back to a contract.

We build a dedicated Events & Wedding Management module that introduces a first-class ecosire.event.booking model with its own pipeline stages (inquiry → proposal → deposit_paid → confirmed → in_production → delivered → closed), driven by a stage-based kanban and a full form view in XML/OWL. A package builder lets you compose an event from reusable ecosire.event.package templates with line-level components (venue, catering tiers, décor, AV, staffing), so a quotation is generated from real cost lines rather than a flat number. Venue and equipment availability is enforced through @api.constrains overlap checks against confirmed bookings, surfaced in a calendar/Gantt view so a hall or a marquee can never be committed twice for the same window.

Technically, the module is a proper Odoo addon: a clean __manifest__.py declaring dependencies (base, mail, account, calendar, and hr where crew scheduling ties to employees), models extending models.Model with _inherit = ['mail.thread', 'mail.activity.mixin'] for chatter and activities, and computed fields via @api.depends (event totals, deposit balance, days-to-event, crew coverage). Vendors are managed as res.partner extensions with a coordination sub-model tracking each subcontractor's scope, confirmation state and payment terms; crew scheduling links hr.employee records to per-event shifts with conflict detection. Billing is native account.move: a configurable schedule emits the deposit invoice on confirmation and milestone invoices on defined triggers, with the balance computed against payments. Security is real — ir.model.access.csv plus record rules so a planner sees only their own company's events, and a coordinator role scoped to assigned bookings. QWeb reports produce the client-facing event proposal, run sheet and final invoice; automated actions (base.automation) fire reminders as the event date approaches. Everything is reachable over Odoo's XML-RPC/JSON-RPC API for integration with your website enquiry form or a client portal.

Because this is build-to-order, nothing ships as an instant download. We start with a short scoping call to lock your event types, package structure, billing milestones and role model, then build the module against your target Odoo version (17.0, 18.0 or 19.0) and edition. Typical delivery is 2–4 weeks from confirmed scope. You get the installable source, UAT on a staging database, documentation and a training session, then a post-go-live support window — and the git repository is handed to you so you own the code outright.