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What does system integration cover for a Spanish company?
For a Spanish company, system integration links the ERP with the tax agency for SII or newer invoice record submission, regional systems such as TicketBAI where they apply, public sector invoice portals, banks for remittances and confirming, the gestoría's payroll file, webshops, marketplaces and carriers. I design and test each flow remotely, while developers or the implementer write any custom code.
Last reviewed by Vikas Saroj
A Spanish ERP is surrounded by links that carry legal or financial weight. Invoice records go to the tax agency under SII or the newer invoicing software rules, Basque entities may also need TicketBAI, public bodies expect structured electronic invoices, banks receive remittance and confirming files, and the gestoría sends payroll back as a file. Add a webshop, marketplaces and parcel carriers, and an unplanned integration landscape quickly becomes a daily reconciliation job.
As a system integration consultant, I work remotely on the design side: which system owns which data, how each flow is triggered, what the field mapping looks like, how errors surface and how everything is tested before go-live. Code, where needed, comes from your developers, a specialist you hire or the implementer; ready-made connectors and simple automations I can often configure myself during the engagement.
I receive nothing from software publishers, connector vendors or banks. The engagement runs in English, with Spanish technical documentation reviewed by your team or the implementer.
Each interface is specified, owned by a named person and tested with real Spanish transactions before it carries live data.
Design of how invoice records reach the tax agency, through the ERP's own module or a connector, including responses, rejected records, corrections and who checks the daily status.
Flows for Basque or Navarre requirements where your advisor says they apply, and for structured electronic invoices sent to public administration through the relevant portal.
SEPA transfer and direct debit remittance files, confirming files for supplier payments and daily statement imports, with returned debits and their charges flowing back into receivables automatically.
A consistent journal file from the gestoría or payroll provider, mapped to accounts and cost centers with finance, and reconciled against the payroll summary each month.
Order, stock, price, refund and settlement flows between the ERP and your webshop or marketplaces, with mainland, Canary Islands and export tax cases written into the mapping.
Shipment requests, labels, tracking events and stock movements exchanged with parcel carriers and third-party warehouses, so customer service can answer delivery questions directly from the ERP screen.
List every flow and dependency
Turn each flow into a spec
Prove it, then keep it healthy
I begin with an inventory of every system and file around the ERP. For a Spanish company it usually includes:
| Counterpart | What moves | Typical options |
|---|---|---|
| Tax agency | Invoice records and their responses | ERP module or connector |
| Basque or Navarre tax administration | Invoice records under regional systems | ERP module or specialist add-on |
| Public administration | Structured electronic invoices and status | Portal upload or connector |
| Banks | Transfers, direct debits, confirming, statements | SEPA and bank-specific files |
| Gestoría | Payroll journal, sometimes tax data | File exchange |
| Webshop and marketplaces | Orders, stock, prices, settlements | Connector or middleware |
| Carriers and warehouses | Shipments, labels, tracking, stock | API or scheduled files |
For each line I record who maintains it, how errors are noticed today and what the gestoría or tax advisor relies on from it. Spanish companies often discover at this stage that a critical step, such as uploading a remittance file or fixing rejected invoice records, depends on one person who does it from memory. The inventory turns those steps into documented flows with owners. The general method is on my system integration page.
Spain's direction is clear even where timelines move: invoice data reaches the tax administration quickly, from software that keeps records intact. Your tax advisor confirms which regime applies to each entity. The integration design then covers what happens around each submission.
For public sector customers, structured electronic invoices go through the relevant portal, and the status returned is linked to the receivable. Whether a given ERP or add-on meets the invoicing software rules is a question for the vendor's written statement and your advisor; I make sure the question is asked and the answer is tested. The Spanish ERP business analyst page shows how these points become requirements.
Spanish collections and payments create file flows that should never be built by hand each week.
Card payments and mobile payment services used in a webshop pay out in grouped amounts with their commission already deducted, so the mapping separates sales, charges and the amount that actually lands in the bank. Every bank you use gets a trial round first, with a returned debit and a rejected transfer deliberately included. Access to bank credentials is limited to named roles, because a payment file is the interface where a quiet mistake costs most. For multi-entity groups, the multi-company ERP page covers intercompany settlement.
Payroll and the gestoría. Many Spanish companies keep payroll and social security filings with a gestoría or payroll provider. What the ERP wants from them is one monthly journal, split by account and cost center and always in the same layout. Pay elements are mapped to accounts in a session with finance and the gestoría, define how corrections post in later months and add a reconciliation check against the payroll summary. Filing obligations stay with the gestoría.
Webshop and marketplaces. Orders must arrive with the right tax treatment: mainland VAT, Canary Islands indirect tax, intra-EU sales and exports each map to different codes, which your advisor confirms. I specify how stock and prices publish, where discounts and delivery fees land on the order, and how a refund in the shop turns into a credit note in the ledger. Marketplace settlements are split into sales, commissions and payouts.
Carriers and warehouses. Parcel carriers and third-party warehouses exchange shipment requests, labels, tracking and stock movements with the ERP. I decide which system creates the delivery note, how partial shipments and returns are handled and how stock differences are flagged. Shipments to the Canary Islands or outside the EU involve customs paperwork, which your forwarder or customs agent confirms. Businesses in ecommerce and logistics usually run all three of these flows together.
For every flow I weigh the realistic options side by side: whatever the ERP offers out of the box, add-ons from the publisher or a Spanish specialist, an integration platform in the middle, bespoke code or plain scheduled file drops. I score them on how often they fail, what drives their running cost, which company answers the phone when they break and how each one survives a version change. A compliance add-on maintained by a small firm can be the right answer, provided the contract states how quickly it will follow rule changes.
Testing uses Spanish transactions from your own business: an invoice in each series, a rectifying invoice, a rejected record, a Canary Islands order, a returned direct debit, a confirming payment, a payroll correction and a marketplace refund. Finance and the gestoría review the outcomes before approval, and the switchover schedule names the day each channel opens or closes, so no invoice is submitted twice or missed.
After go-live, alerts reach a named person when records are rejected, files fail or control totals disagree, and a runbook explains how to reprocess safely. I deliver this remotely and travel only by arrangement. For the sales half of the order flow, read about my CRM consulting in Spain; for whole-system questions, start with ERP consulting for Spanish companies.
Tell me about your business and current systems. I’ll suggest the most sensible first step.
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I design and test the connection; the records themselves leave through whatever submission module or add-on your ERP uses, and bespoke programming, if needed, sits with your developers or the implementer. I specify triggers, responses, corrections and alerts, then test with real invoices, including rejected records, before go-live. Your advisor confirms which regime applies.
That is for the vendor to state in writing and for your tax advisor to assess. My role is to make sure the question is asked precisely, that the answer covers your edition and add-ons, and that the agreed behavior is tested before go-live and checked again after upgrades.
In most setups, yes, provided your bank delivers return files in a format the ERP reads. The customer balance reopens, the bank's charge is booked and someone in credit control gets a follow-up task. Each bank is trialed first, so nobody relies on the flow before it has handled a real return.
In most cases only the monthly payroll journal, in a fixed layout that splits costs by account and cost center. Finance, the gestoría and I settle the mapping together, define how corrections post later and add a reconciliation check. Payroll and social security filings remain the gestoría's responsibility.
Every business is different. Share where you are today and what you want to fix, and I’ll tell you honestly whether and how I can help.
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