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SAL (Stato Avanzamento Lavori) is the standard Italian approach to invoicing multi-phase projects. Arya includes a full SAL flow: phase definition → execution → customer signature → invoicing.
SAL tab with phase list, status and amounts

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Define phases

1

Open SAL tab

Project page → SAL tab.
2

Add phase

Click + New phase. Fill:
  • Name: e.g. “Requirements analysis”, “MVP development”, “Go-live”
  • Description: phase objectives
  • Start / expected end date
  • Invoiceable amount: % or absolute value of budget
  • Predecessors: other phases that must close first
3

Reorder

Drag-and-drop. Sum of amounts cannot exceed total budget.

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Phase statuses

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Close a phase

1

Declare completion

PM clicks Mark as completed. Arya asks for a short note and attaches closure documents (report, deliverables).
2

Send to customer

Send for signature → Arya generates a SAL PDF with description, amount, deliverable checklist. The customer receives a public link to sign it digitally.
Customer-side SAL signature page
3

Customer signs

Qualified electronic signature (QES) via SPID or certificate. On signing, the phase moves to Signed.
4

Issue invoice

Click Generate SAL invoice. Arya creates the e-invoice with the phase amount, ready for SDI submission. See E-invoicing.

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SAL variants

You can add variants (mid-project changes that modify amounts or deliverables):
  • New variant → specify changes → customer signs → budget updated

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SAL report

Project page → SAL report: visual timeline of phases with status, planned vs actual dates, invoiced vs remaining.

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Frequently asked questions

Technically yes, but Arya’s flow blocks invoice generation if the phase isn’t signed. Force with ⋯ → Early invoice (Admin role required).
Phase returns to Completed. You can renegotiate deliverables, add a variant, and resubmit for signature.
Yes, if there are no predecessor dependencies. Arya shows them in parallel on the timeline.