fix(purchasing): allow 5-decimal unit price precision on purchase orders

[carbon-agent]

Problem

Unit prices on purchase orders were clamped to two decimal places at input time, preventing accurate recording of real per-unit prices that carry more decimals (e.g. fasteners/raw material quoted at $0.00123). The underlying columns already support five decimals (NUMERIC(16,5)).

Root cause

The currency-styled price inputs passed only { style: "currency", currency } to Intl.NumberFormat, which defaults maximumFractionDigits to 2 — clamping both entry and display to two decimals.

Fix

Add explicit minimumFractionDigits: 2, maximumFractionDigits: 5 to the currency price inputs so up to 5 decimals can be entered, preserved on save, and displayed, while existing 2-decimal values render unchanged.

Files touched:

• PurchaseOrderLineForm.tsx — item and indirect branches (unit price, shipping, tax amount)
• PurchaseOrderDeliveryForm.tsx — shipping cost
• SupplierQuoteLinePricing.tsx — supplier unit price, shipping, tax amount
• SupplierProcessForm.tsx — minimum cost

Acceptance criteria

• Users can enter unit prices with up to 5 decimal places
• Entered precision is preserved when saved (matches NUMERIC(16,5))
• Display formatting shows up to 5 decimals (no premature rounding)
• Existing 2-decimal values continue to display correctly (minimumFractionDigits: 2)

Verification

• pnpm exec turbo run typecheck --filter=erp — ✅ passes
• biome check on the 4 files — ✅ clean

No schema changes; no new strings.

Closes #1203

🤖 Generated with Claude Code

Summary by CodeRabbit

• Bug Fixes
  • Improved currency formatting for supplier shipping costs and minimum costs.
  • Currency values now display with consistent precision, including two required decimal places and up to five decimal places where applicable.
  • Standardized currency display across purchase order lines and supplier quote pricing for unit prices, shipping, and tax amounts.

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Actions	Updated (UTC)
carbon	Ready	Preview, Comment	Jul 23, 2026 10:08pm

3 Skipped Deployments

Project	Deployment	Actions	Updated (UTC)
academy	Skipped		Jul 23, 2026 10:08pm
docs	Skipped		Jul 23, 2026 10:08pm
mes	Skipped		Jul 23, 2026 10:08pm

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: e04c6e28-6b3c-4821-aa25-01b42f3f595f

📥 Commits

Reviewing files that changed from the base of the PR and between 92e19c0 and b1963a8.

📒 Files selected for processing (4)

• apps/erp/app/modules/purchasing/ui/PurchaseOrder/PurchaseOrderDeliveryForm.tsx
• apps/erp/app/modules/purchasing/ui/PurchaseOrder/PurchaseOrderLineForm.tsx
• apps/erp/app/modules/purchasing/ui/Supplier/SupplierProcessForm.tsx
• apps/erp/app/modules/purchasing/ui/SupplierQuote/SupplierQuoteLinePricing.tsx

---

📝 Walkthrough

Walkthrough

Purchasing currency inputs now specify fractional precision up to five digits where needed. Related purchase order and supplier quote currency expressions were reformatted without changing their behavior.

Changes

Purchasing currency precision

Layer / File(s)	Summary
Purchase order currency precision apps/erp/app/modules/purchasing/ui/PurchaseOrder/*	Delivery cost formatting adds currency style and two-to-five fractional digit limits; purchase order line currency fallbacks are reformatted without logic changes.
Supplier pricing currency formatting apps/erp/app/modules/purchasing/ui/Supplier/SupplierProcessForm.tsx, apps/erp/app/modules/purchasing/ui/SupplierQuote/SupplierQuoteLinePricing.tsx	Supplier minimum cost adds fractional digit limits, while supplier quote pricing, shipping, and tax currency options retain their existing precision settings.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• crbnos/carbon#1205: Updates the same purchasing currency inputs and fractional digit formatting options.

Suggested reviewers: barbinbrad

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title clearly states the main change: increasing purchasing price precision to five decimals on purchase orders.
Linked Issues check	✅ Passed	The PR preserves up to five-decimal precision for purchase order price inputs, matching issue #1203's requirement.
Out of Scope Changes check	✅ Passed	The additional form updates align with the stated goal of applying the same precision handling across related purchasing screens.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch agent/po-unit-price-precision-1203

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands.}