Diagnosis
We analyse your current operations, the software you use, data volumes and your position regarding SII and verified invoicing. We deliver a roadmap with timelines and risks.
Partner of a3 · Wolters Kluwer
a3ERP · Wolters Kluwer
a3ERP is the Wolters Kluwer ERP for comprehensive SME management: accounting, invoicing, purchasing, sales, warehouse and direct connection to the Spanish tax authority. At Summum Sistemas we are a Partner of a3 · Wolters Kluwer: we implement it, configure it, migrate your data and integrate it with the rest of your operations, so it goes live without surprises.
a3ERP is the business management solution from Wolters Kluwer, one of the leading providers of administration and finance software for SMEs in Spain. It covers the full business cycle — accounting, invoicing, purchasing, sales, warehouse control and treasury — in a single system, with direct connection to tax obligations: SII (Immediate Information Supply) and the new verified invoicing requirements.
It is designed for companies that have outgrown a basic invoicing programme and need real traceability: automatic accounting links, multi-warehouse stock control, document management and the ability to grow in modules as the business evolves. It is a powerful tool; which is precisely why the value lies in a well-executed implementation.
That is where Summum Sistemas comes in, as a Partner of a3 · Wolters Kluwer. We roll up our sleeves to get a3ERP set up to fit your company, with data migrated, processes configured and the team trained. We coordinate the go-live from start to finish and, as a partner, we have the manufacturer's backing to ensure the implementation goes smoothly.
The a3ERP process.
The process · four stagesConfiguration and migration
We configure the chart of accounts, invoice series, warehouses and permissions. We migrate master data, balances and historical records from your previous system, with verified reconciliation before go-live.
Integration
We connect a3ERP with the rest of your ecosystem: POS, e-commerce, banking and internal tools. When a custom connector is needed, we build it.
Training and support
We train key users with real business cases and support the first period-end closing. Afterwards, ongoing support and adjustments for regulatory changes.
What is included
What a3ERP includes.
The operational detail: what we deliver as part of the work and what we keep alive afterwards.
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Implementation tailored to your operations
We configure a3ERP to match your sector and your actual purchasing, sales and warehouse workflows — not a generic factory setup.
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Data migration with verified reconciliation
Chart of accounts, historical entries, opening balances, customers and suppliers. We confirm everything reconciles before go-live.
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SII and verified invoicing
Configuration of the Immediate Information Supply for companies required to use it, and compliance with current verified invoicing regulations.
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Integrations with your ecosystem
Connection to POS, e-commerce, banking and internal applications. When no standard connector exists, we develop one.
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Manufacturer's backing
As a partner of a3 · Wolters Kluwer, we coordinate directly with the manufacturer at critical moments during the implementation.
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Single point of contact
We manage the entire go-live: data, user profiles, templates and training, so you do not have to coordinate multiple vendors.
Summum cluster
How it connects with its sisters.
A well-implemented ERP gains power when combined with data governance, process automation and a coherent digital strategy. The Grupo Summum divisions work in a coordinated way so that a3ERP fits into your overall architecture.
consultoría
Summum consultoría
Structure the governance of your information so that a3ERP becomes the single source of truth for your business.
View service → iaSummum ia
We automate workflows that start or end in a3ERP: recurring delivery notes, invoices and reconciliations.
View service → sistemasSummum sistemas
Full compliance with Veri*factu and electronic invoicing, aligned with your a3ERP implementation.
View service →Frequently asked questions about a3ERP.
Is Summum Sistemas a Partner of a3 · Wolters Kluwer?
Yes. Summum Sistemas is a Partner of a3 · Wolters Kluwer. Our work covers implementation, configuration, data migration and integration of a3ERP with your other tools, backed by the manufacturer to ensure a smooth go-live.
Can you migrate our data from our current system to a3ERP?
Yes. Migration is one of the core phases of the project: we export the chart of accounts, historical entries, opening balances and customer and supplier files, import them into a3ERP and verify the reconciliation before go-live. The timeline depends on data volumes and the state of the source system.
Does a3ERP comply with SII and verified invoicing?
a3ERP includes the SII module for companies required to use it and keeps up to date with verified invoicing requirements. We configure and verify that part during implementation, and adjust the system when tax obligations change.
Do you provide support after go-live?
Yes. After go-live we provide ongoing functional and technical support: version updates, incident resolution, adjustments for regulatory changes and periodic reviews to identify improvements.