Common COA mapping mistakes and how to fix them
The most frequent T12 mapping mismatches, why they happen, and how to correct them so the system learns.
"Electrical-TO" mapped to turnover instead of utilities
Why it happens: The "TO" suffix triggers Archer's turnover recognition. The system sees "turnover" and maps it to a turn cost category.
Fix: Change the dropdown to the appropriate utilities category (e.g., Electric - Common Area or Electric - Vacant). After you Save to Archer, the system learns that "electrical-TO" is a utility item for your account.
Payroll items mapped to Repairs and Maintenance
Why it happens: Some T12s list maintenance staff payroll under an "R&M" section header. Archer sees the "R&M" context and maps individual payroll line items there.
Fix: Remap to your payroll category. These corrections train the system quickly since payroll line items tend to have consistent naming across properties.
Utility billing fees mapped to Other Income instead of Reimbursements
Why it happens: "Convergent billing fee" or "utility management fee" contains "fee" and "utility" which can match either category.
Fix: Map to whichever category your pro forma uses (typically Utility Reimbursements or RUBS income). Be consistent — the AI learns from your pattern.
"Supplies" (or "Contract Labor," "Misc") lands in the wrong sub-bucket
Why it happens: The row description doesn't say which kind. "Supplies — $4,120" could be office, janitorial, or maintenance supplies, and nothing on the statement resolves it. If your chart splits those three, the system has to pick one, and so would your analyst.
Fix: Correct the dropdown so it learns your preference — but recognize this correction will recur on every statement from that manager, because the source row won't change. If the split doesn't change a pass/pursue decision, the durable fix is to keep those buckets grouped on your screening chart and only break them out on your detailed chart. See The Turn-It-On Test.
Line items split across similar categories
Why it happens: When your COA has very granular subcategories (e.g., both "carpet cleaning - turns" and "carpet cleaning - R&M"), the system may guess wrong between them.
Fix: Correct the mapping. Consider whether you truly need both subcategories — if they're frequently confused, consolidating them into one reduces ongoing adjustment time.
The general principle
Mapping errors decrease with use. Mapping errors decrease with use. Out of the box, ~98% of line items map correctly on trained categories at the subtotal level; at Level 1 detail, expect 90%+ after 5–10 deals as the system learns your team's preferences. The first few deals require the most manual review, and that's expected. The first few deals require the most manual review, and that's expected. Think of it as training the system — a few minutes of corrections now saves hours of corrections later.
If you find yourself making the same correction repeatedly and it's not sticking, contact support@archer.re. The team can manually boost the training for specific line items.
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