Solution: Double data entry

How to stop entering the same data twice

Double entry is the tax you pay for disconnected tools. It also guarantees the numbers disagree.

The short answer

Stop double entry by keeping one canonical record per resident, unit and lease, and having every module read from it instead of copying it. Where two systems must coexist, decide which one owns each record — copies without an owner always diverge.

Overview

Double entry is the tax you pay for disconnected tools. It also guarantees the numbers disagree.

Why this approach works

Double entry is not only wasted time; it manufactures disagreement. The same resident entered twice, keyed by name rather than identity, becomes two residents with two balances, and the resident is usually the one who discovers it.

CSV exports are not an integration layer. They are a snapshot that was true when it was taken, and any process that depends on someone remembering to re-export will fail during the busy week when it matters.

Ownership is the design decision. For each record type, name the system that holds the truth and make the others read-only against it. That is what makes a reconciliation possible at all.

Common causes

  • Separate leasing, accounting, and maintenance systems
  • CSV exports as the integration layer
  • Records keyed by name instead of ID

Operational risks

Mismatched balances, duplicate residents, and reporting nobody trusts.

Recommended process

Keep one canonical record per resident, unit, and lease. Every module reads from it rather than copying it.

How Ayillo helps

Ayillo modules share one database — a resident entered at application carries through lease, ledger, work orders, and owner reporting.

FAQ

Frequently asked

Is an integration as good as one shared record?

No. An integration keeps two records approximately in step and fails silently; one record cannot disagree with itself.

How do I clean up duplicates already created?

Merge on a stable identifier rather than name, keep the ledger history from both sides, and reconcile the resulting balance before closing the duplicate.

Related resources

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