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Odoo Gold Partner — Customization

Odoo Customization in Spain

TechUltra Solutions delivers Odoo to Spanish businesses from our Italian partner firm in Rome with India HQ engineering depth. Spain's deadlines are now fixed: Verifactu billing-software rules apply from 1 January 2027 for companies and 1 July 2027 for the self-employed, and Royal Decree 238/2026 makes B2B e-invoicing mandatory from about October 2027 for businesses with turnover above €8 million and a year later for the rest. TicketBAI has applied in the Basque Country since 2022. We handle IVA returns, modelo declarations (303, 390, etc.), PGC (Plan General de Contabilidad), and bilingual Spanish + English templates.

TechUltra's Ahmedabad HQ, working with our Italian partner firm in Rome.

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What's included in Odoo customization for Spain

Tailored Odoo customization from a Gold Partner — 400+ shipped projects across manufacturing, retail, sales, warehouse, education, and construction. Custom reports, dashboards, POS receipts, invoicing, and CRM workflows built to upgrade-safe patterns and delivered on time, on budget.

  • Requirements workshop

    Half-day workshop with the people who'll use the customization. We map current pain points, draft acceptance criteria, and decide what's in/out of scope.

  • Custom Python modules

    New modules following Odoo's official extension patterns — inheriting from base models, using upgrade-safe field definitions, avoiding monkey-patching.

  • Workflow customization

    State machines, automated actions, multi-step approvals, and conditional logic on existing Odoo objects. Configured via studio where possible, code where needed.

  • Custom reports and dashboards

    Reports built with QWeb (PDF/Excel/CSV) and OWL dashboards in the Odoo UI. Always with print-friendly and accessibility-aware layouts.

  • UI/UX customization

    View overrides, custom widgets, branded themes, and OWL components for cases where the standard Odoo UX doesn't fit the task.

  • Automated tests

    Unit and integration tests for all custom code. Tests run against the Odoo CI image so they catch breakage in future version upgrades early.

How we customize Odoo in Spain

  1. Scoping workshop — 1–2 days

    Half-day to one-day workshop to map requirements, identify edge cases, and write acceptance criteria. Output: a written specification.

  2. Fixed-scope quote — 2–3 days

    We write a fixed-price quote based on the spec — including effort breakdown by module, dependencies, and assumptions called out explicitly.

  3. Build — 2–6 weeks

    Iterative two-week sprints with weekly demos. Code lands in a feature branch with a UAT environment your team can poke at.

  4. User acceptance testing — 3–5 days

    Real-data UAT with the people who'll use the feature. Bug fixes happen during the sprint; scope changes go through change-control.

  5. Production deployment — 1 day

    Code deploys to production via the same release process as the rest of your Odoo instance. Smoke tests run automatically post-deploy.

  6. 30-day stabilization — 30 days

    Free bug-fix window for issues uncovered in production. Issues outside the original spec are quoted as new work.

Most customization engagements run 2–6 weeks of build time once the spec is signed off. A simple workflow tweak (one model, one form) ships in 3–5 days. A custom multi-module flow with new objects, custom reports, and a third-party integration runs 4–6 weeks. We start sprinting within a week of contract signature unless your team needs extra ramp time on requirements. Critical fixes can be slotted into a running implementation without restarting the timeline.

Spain compliance we configure out of the box

Regulatory regimes that apply to odoo customization in Spain, and what each requires of the Odoo configuration.
Standard What it requires
IVA (Spanish VAT) returns Monthly / quarterly IVA returns via Modelo 303 generated in AEAT-required format. Annual Modelo 390 summary. Standard rate 21% plus reduced rate 10% and super-reduced rate 4% per supply category. Intra-Community supplies via Modelo 349.
Verifactu (billing software rules) Billing systems must keep chained, tamper-evident invoice records and, in VERI*FACTU mode, send each record to the tax agency (AEAT). Applies from 1 January 2027 to companies paying corporate tax and from 1 July 2027 to the self-employed and other taxpayers (Royal Decree-law 15/2025). Businesses already on SII are exempt.
TicketBAI (Basque Country e-invoicing) TicketBAI compliance for businesses operating in the Basque Country (Álava, Gipuzkoa, Bizkaia) — required since 2022/2023 per province. Invoice signing, transmission to local hacienda, fiscal chain integrity. Distinct from Verifactu.
B2B e-invoicing (Crea y Crece, Royal Decree 238/2026) Royal Decree 238/2026 makes B2B e-invoicing mandatory 12 months after its technical ministerial order for businesses with turnover above €8 million (expected October 2027) and 24 months after for all others (expected October 2028). Structured formats such as UBL and Facturae, with invoice status reported.
Plan General de Contabilidad (PGC) PGC-compliant chart of accounts pre-configured. Customisation per business sector while preserving PGC structure for Spanish financial reporting (cuentas anuales).
SII (Suministro Inmediato de Información) For businesses in scope (large enterprises, monthly VAT filers), SII real-time VAT reporting to AEAT. Native Odoo integration generates and transmits invoice data within the SII window.

Odoo Customization pricing in Spain

Every Spanish project is priced to its scope. Cost depends on user count, entity count, modules, integrations and compliance work: Verifactu, B2B e-invoicing and, in the Basque Country, TicketBAI. You get a fixed price after discovery, in EUR, before any build starts. Odoo Enterprise licensing is separate, billed by Odoo at its price list for your country (odoo.com/pricing). Verifactu, e-invoicing or TicketBAI readiness on an existing Odoo database gets a separate fixed quote.

What moves the price

  • Scope of new code

    New objects, new forms, and new reports each have a typical effort range. The spec lists every item and its quoted hours, so trimming scope to fit budget is straightforward.

  • Integration with third-party systems

    Calling out to external APIs, webhooks, or vertical SaaS tools adds 1–3 weeks per integration depending on the third party's API quality.

  • Existing customization complexity

    Layering new customizations on top of legacy customizations from a previous partner takes longer — we audit the existing code before quoting.

  • Testing depth

    All custom code ships with automated tests. Higher-stakes features (e.g. revenue recognition, regulatory reporting) get more comprehensive test suites which adds time.

See the full breakdown on Odoo pricing and implementation cost by country.

Odoo Customization in Spain: frequently asked questions

  • How much does an Odoo customization project cost in Spain?

    Every Spanish project is priced to its scope. Cost depends on user count, entity count, modules, integrations and compliance work: Verifactu, B2B e-invoicing and, in the Basque Country, TicketBAI. You get a fixed price after discovery, in EUR, before any build starts. Odoo Enterprise licensing is separate, billed by Odoo at its price list for your country (odoo.com/pricing). Verifactu, e-invoicing or TicketBAI readiness on an existing Odoo database gets a separate fixed quote. Every TechUltra engagement is fixed-price after a one-week discovery, so the number you sign is the number you pay for the agreed scope.

  • How long does an Odoo customization project take in Spain?

    Most customization engagements run 2–6 weeks of build time once the spec is signed off. A simple workflow tweak (one model, one form) ships in 3–5 days. A custom multi-module flow with new objects, custom reports, and a third-party integration runs 4–6 weeks. We start sprinting within a week of contract signature unless your team needs extra ramp time on requirements. Critical fixes can be slotted into a running implementation without restarting the timeline. Spain-specific compliance configuration (IVA (Spanish VAT) returns, Verifactu (billing software rules)) is built into the setup phase rather than bolted on at the end.

  • Does TechUltra have a team in Spain?

    Senior consultants with Spanish compliance expertise — IVA, PGC, Verifactu, TicketBAI, AEAT submission workflows. Spanish-speaking team members for finance work and customer-facing communications. Implementation lead, technical lead, project manager dedicated per engagement. TechUltra's Ahmedabad HQ, working with our Italian partner firm in Rome.

  • Do you have a Spanish office?

    Not yet — Spanish engagements delivered from our Italian partner firm in Rome with India HQ engineering depth. Same time zone (CET), same EU jurisdiction, EU GDPR compliant. On-site work in Spain straightforward when needed. Most communication via video and async, with Spanish-speaking team members on relevant calls.

  • Verifactu — what is it and when does it apply to us?

    Verifactu is Spain's anti-fraud standard for billing software: invoice records must be chained and tamper-evident and, in VERI*FACTU mode, sent to AEAT as each invoice is issued. Software vendors had to comply by July 2025. Users must comply from 1 January 2027 if they pay corporate tax, and from 1 July 2027 otherwise (Royal Decree-law 15/2025). Businesses on SII are exempt. Odoo's Spanish localization supports Verifactu.

  • How do we choose an Odoo customization company?

    Ask to see three things before you sign: a specification from a past project, so you know you will get a document to approve rather than a verbal brief; the test suite and review process, because untested customizations are what break at upgrade time; and who owns the code. TechUltra answers all three in writing, has shipped 200+ customization projects as an Odoo Gold Partner, and publishes 101 enterprise references on Odoo's own partner directory you can check.

  • How much do Odoo customization services cost?

    Every customization is quoted as a fixed scope after a scoping workshop, so there is no hourly surprise. The price moves with the number of modules touched, whether the change is configuration, Studio or Python code, the reports and integrations affected, and the test coverage the change needs. Small report or workflow changes are a few days of work; a custom module with its own screens, approvals and tests is a sprint or two. Ongoing small changes are usually cheaper inside a support retainer.

More Odoo services in Spain

Explore the wider TechUltra offering for your region.

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