The integrated cloud suite by TeamSystem that brings together invoicing, accounting and payroll in a single environment. As an Official TeamSystem Partner, Summum Sistemas implements, configures and maintains it so your team is productive from day one.
DELSOL 360 is the cloud-integrated version of the three most widely deployed programmes from Software del Sol (TeamSystem): Factusol for invoicing and stock control, Contasol for professional accounting with SII, and Nominasol for payroll and social security contributions. The suite shares a common database and synchronises transactions in real time: an invoice issued in Factusol goes straight to the Contasol journal with no re-exports or manual copies.
The major driver of change in 2025–2026 is Verifactu. Royal Decree-Law 15/2025 sets 1 January 2027 for legal entities and 1 July 2027 for self-employed individuals as the deadlines for issuing invoices through systems that generate verifiable records with the Spanish tax authority (AEAT). Factusol — the invoicing module of DELSOL 360 — already incorporates the manufacturer's responsible declaration mechanism (RD 1007/2023): there is no official AEAT homologation or certified software list; it is the manufacturer itself that declares compliance. Migrating to DELSOL 360 now means meeting the deadline with time to spare for testing and training.
Many SMEs in Castilla y León and the Canary Islands have been working with desktop versions of Factusol or Contasol for years, in some cases using free or legacy licences. Moving to the cloud suite means updating workflows, training the team, reviewing tax configurations and, often, cleaning up the product master or the chart of accounts. Summum Sistemas has been accompanying management software implementations in SMEs since 2007: we know the common friction points and resolve them before they disrupt operations.
We analyse your current situation: installed version, transaction volume, number of payroll employees, stock and sales-channel requirements. We identify which data to migrate, which configuration to adapt and what training each user profile needs.
We create the company in DELSOL 360, import the chart of accounts, product master, customer and supplier portfolio, and opening balances. We configure VAT types, invoice series and Verifactu parameters to ensure compliance from the very first entry.
We train users by module: invoicing and stock with Factusol, accounting and tax returns with Contasol, payroll and contract management with Nominasol. Go-live runs in parallel with the previous system during a verification period agreed with you.
Once in production, we provide technical and functional support: incident resolution, version updates, adaptations to regulatory changes (new AEAT forms, SII updates, collective agreement revisions) and system extensions as your business grows.
The operational detail: what we deliver as part of the work and what we keep alive afterwards.
Factusol cloud implementation
Platform registration, configuration of invoice series, price lists, warehouses and stock control. Activation of the Verifactu module in accordance with RDL 15/2025.
Contasol cloud implementation
Adapted chart of accounts, SII configuration for companies required to use it (turnover > €6 M/year), VAT, income tax and corporation tax returns, and annual accounts.
Nominasol cloud implementation
Employee registration, collective agreement configuration, integration with NS Conect@ and SILTRA for social security submissions, and contract and withholding tax management.
Migration from earlier versions
Export and cleansing of historical data from desktop versions (Factusol, ContaSol) or third-party software, with balance verification before the production go-live.
Verifactu compliance
Review and configuration of the invoicing module to generate the registration and cancellation records required by the AEAT. The manufacturer (TeamSystem) covers the responsible declaration under RD 1007/2023.
Training and documentation
Hands-on sessions by module and user profile. Operational manual tailored to your company's processes, available for future team members.
DELSOL 360 is reinforced when connected to Summum's AI layer to automate document classification, and with Summum Consultoría to address the legal obligations linked to Verifactu and B2B e-invoicing.
Automate the capture of supplier invoices and their posting to Contasol using document AI, eliminating manual data entry.
View service → consultoríaManaging employee data in Nominasol and customer data in Factusol requires GDPR compliance: our Consultoría team guides you through the data processing analysis.
View service → sistemasDedicated Verifactu and B2B e-invoicing compliance service for companies already using DELSOL 360 that need to close out their regulatory compliance before the deadline.
View service →The legal mechanism is not an AEAT homologation or a certified software list. RD 1007/2023 establishes that the manufacturer issues a responsible declaration of compliance. TeamSystem/Software del Sol has adapted Factusol to these requirements and it is the manufacturer that backs that conformity. At Summum we configure the module correctly so that invoicing records are generated and submitted in accordance with the regulation.
If you are a legal entity (limited company, public limited company, etc.), the deadline is 1 January 2027 under RDL 15/2025. If you are self-employed, the deadline is 1 July 2027. We recommend not waiting until the last quarter: migrating to DELSOL 360 and training the team takes time, and mistakes during the go-live phase are easier to correct when there is no deadline pressure.
Yes. Factusol cloud imports data from desktop versions. During the migration process we review and clean the product master, the customer and supplier portfolio and outstanding balances. Historical Contasol entries can also be migrated, although a cut-off date is usually agreed and read-only access to the previous version is maintained.
Contasol and Nominasol have firm-oriented versions that allow you to manage multiple companies from a single workspace. If your practice also needs advanced tax management (personal income tax, corporation tax, AEAT forms, property management), also consider Aplifisa, the TeamSystem suite for practices that we implement alongside DELSOL 360.
Factusol is the invoicing and stock control module: it handles purchases, sales, delivery notes, price lists and warehouses, but does not include accounting. DELSOL 360 is the suite that integrates Factusol with Contasol (accounting) and Nominasol (payroll) in the cloud. All three modules share data in real time, eliminating manual exports between programmes.