# Inventory (INV)
Navatom Inventory records every stock movement on board and ashore as a journal, with live stock, coverage and expiry for every vessel and location.

URL: https://navatom.com/products/inventory
Category: [Inventory Management](https://navatom.com/products/category/inventory-management)
Runs on: Office, Ship, Supplier

## Overview
Navatom Inventory is the operational nerve center for fleet stock management. It tracks each spare part, consumable and material across all vessels and shore warehouses in real time. It replaces scattered spreadsheets and manual tallies with one cloud-based inventory platform. Your supply chain, technical and operations teams share a single source of truth.
Inventory is built around 7 specialized journal types: Adjustment, Arrival, Counting, Movement, Internal Transfer, Ownership Transfer and Transfer. Each transaction follows its own workflow. Each workflow has configurable multi-tier approval chains, reason codes and a complete audit trail. Say you receive goods against a purchase order, correct a stock discrepancy or transfer spares between vessels. Inventory ensures the right process is followed each time.
Five on-hand views give you instant visibility into your fleet's stock position. Unrestricted stock shows day-to-day availability. Tracking shows stock by space, batch, serial, owner and status. Coverage supports min/max/optimal planning. Expiry supports batch lifecycle management. The fifth view lists the spare parts of each piece of equipment. Multi-dimensional tracking gives Navatom Inventory the precision and control that maritime operations demand.

## Key figures
- 7 Journal Types
- 5 Tracking Dimensions
- 4 Coverage Levels
- 5 On-Hand Views

## Features
- **Seven Specialized Journal Types**: Not all inventory transactions are the same. Navatom Inventory has 7 distinct journal types: Adjustment, Arrival, Counting, Movement, Internal Transfer, Ownership Transfer and Transfer. Each has a workflow, validation rules and approval chain built for its purpose. Adjustment journals handle stock corrections with mandatory reason codes. Arrival journals link to purchase orders for goods receipt. Counting journals support physical inventory with blind counting and variance analysis. Movement journals track space changes within a location. Internal Transfer and Transfer journals manage moves between locations and between vessels. They have dual-approval and in-transit tracking. Ownership Transfer journals handle legal entity changes without physical movement.
  - Adjustment, Arrival, Counting journals
  - Movement & Internal Transfer workflows
  - Ownership Transfer tracking
  - Each type has its own lifecycle
- **Real-Time On-Hand Visibility**: See your fleet's stock in 5 views. Unrestricted stock shows day-to-day availability. Tracking is by space, batch, serial, owner and status. Coverage compares stock against minimum and optimal levels. Expiry is by batch. The last view shows each equipment's spare parts against its parts list. Each view adapts to the tracking dimensions turned on for each material. Batch-tracked items show batch columns, and serial-tracked items show serial columns. Server-side rendering handles hundreds of thousands of stock records without browser memory limits. Each number drills down to the transactions behind it.
  - Unrestricted stock view
  - Coverage analysis dashboard
  - Expiry monitoring board
  - Spare parts per equipment, with stock on hand
- **Arrival & Goods Receipt Management**: Receive materials against purchase orders with full traceability. Arrival journals capture supplier references, link to PO line items and support partial receipt with tolerance checks. You know what was ordered, what arrived and what is still outstanding. Each arrival line records quantity, batch or serial details and inspection status. Navatom checks it against PO quantities and the over- and under-delivery tolerances you set. It flags differences before they become inventory errors.
  - Supplier reference capture
  - Purchase order linkage
  - Partial receipt support
  - Tolerance checks on receipt
  - Posted on board from the ship app
- **Stock Coverage Planning**: Set minimum, maximum and optimal stock levels for each material at each location, on their own. A tanker and a bulk carrier can have very different coverage targets for the same spare part. Each reflects its own operational profile. The Coverage Analysis view shows gaps at once with visual indicators. Red is below minimum, amber is below optimal and green is within range. Fleet-wide coverage reports help your supply chain team set priorities for replenishment across the whole fleet. They cover more than one vessel at a time.
  - Min/max/optimal per material
  - Per-location thresholds
  - Visual gap indicators
  - Stock levels on every requisition line
- **Inter-Location & Inter-Vessel Transfers**: Transfer stock between vessels, from shore to ship, or between any mix of locations. Full transfer journals cover each move. Ship-to-ship transfers at sea, planned shore-to-vessel replenishment and emergency redistribution across the fleet all follow the same controlled workflow. Dual-approval means both the sending and the receiving location authorize the transfer. In-transit tracking shows materials that have left the source but have not yet reached the destination. That ends the "inventory black hole" of manual processes.
  - Ship-to-ship transfers
  - Shore-to-ship logistics
  - Dual approval is enforced
  - In-transit status tracking
- **Physical Inventory Counting**: Record physical counts in counting journals, compare them with the system quantity and review the differences before they post. Counting journals create adjustment entries on their own for confirmed variances. That keeps a clear audit link between the count event and the stock correction it caused.
  - Counts posted through approval
  - Expected vs actual comparison
  - Variance analysis reports
  - Counting journal workflows
- **Expiry Monitoring & Lifecycle**: Track batch-level manufacturing dates, shelf life periods, best-before dates and expiry windows across your whole fleet. Each batch shows its shelf-life status and the time it has left. The team can use, move or replace it before it expires. The fleet-wide Expiry Monitoring view gathers expiring stock across all vessels and warehouses, sorted by urgency. No more finding expired fire extinguisher charges or outdated medical supplies during a port state inspection.
  - Batch expiry date tracking
  - Expiring batches listed ahead of time
  - Fleet-wide expiry dashboard
  - Remaining shelf life on every batch
- **Multi-Tier Approval Workflows**: Each journal type supports configurable approval rules that run on their own at each workflow transition. Set criteria based on transaction value, quantity, material type, location or any mix of these. Then send approvals to the right authority level. Multi-tier escalation gives high-value or high-risk transactions extra oversight. Authorization rules enforce dual-control for critical operations, such as inter-vessel transfers. Navatom tracks each approval decision with full attribution for audit.
  - Approval criteria you can set
  - Multi-tier escalation rules
  - Authorization rule templates
  - Dual-control for sensitive moves
- **Hierarchical Location & Space Management**: Organize your physical storage with a Locations → Spaces hierarchy that mirrors your real-world layout. Each location is a vessel, warehouse or shore facility. Within each location, define unlimited spaces (holds, stores, decks, shelves, bins) to track exactly where each item sits. The location detail view has 9 tabs covering general information, spaces, stock overview, coverage settings, transactions and more. Map spaces to ship sections for easy navigation. Your crew can find the right part in the right place without guessing.
  - Location → Space hierarchy
  - 9-tab detail view per location
  - Ship section mapping
  - Bulk space operations
- **Multi-Dimensional Tracking**: Track inventory with the precision your operation needs. Turn on up to 5 tracking dimensions per material: Batch, Serial Number, Owner, Status and Space. Combine them freely for full traceability. Each dimension can be set per material. Safety-critical spares can carry full serial traceability. Bulk consumables can use simple space tracking. Data entry forms, grid columns and validation rules adapt on their own to each material's tracking settings.
  - Batch tracking per material
  - Serial number management
  - Owner dimension support
  - Set per material
- **Stock Adjustment & Correction**: Correct stock differences with reason-coded adjustment journals. Each adjustment needs a reason from your configurable reason library. Examples are damage, theft, measurement error and administrative correction. No stock change goes unexplained. Reason codes feed straight into analytics, so you can spot repeat issues. Say "damage" adjustments spike at one location. You have the data to look for root causes rather than just fix the numbers.
  - Reason-coded adjustments
  - Reason library you can set up
  - Feeds into analytics
  - Full audit trail per adjustment
- **Movement & Internal Transfers**: Move stock between spaces within the same location using movement journals. Reorganize your warehouse, relocate items between decks or consolidate storage. Overall location quantities stay the same. For transfers between locations within the same legal entity, internal transfer journals handle the full lifecycle. Pick from the source, create in-transit records and receive at the destination. Each transaction is all-or-nothing, so inventory is never lost or counted twice during the move.
  - Within-location space moves
  - Between-location transfers
  - All-or-nothing transaction processing
  - Real-time stock update
- **Ownership Transfer Management**: Handle changes in material ownership between legal entities without physical movement. Ownership transfer journals record the legal handover. Examples are management company to vessel owner, between co-owners, or consignment stock changes. The material stays where it is. Each transfer records the outgoing and incoming owner with document references. This keeps the complete chain of custody for financial reporting and regulatory compliance.
  - Legal entity ownership changes
  - Consignment stock support
  - No physical movement required
  - Complete transfer audit trail
- **Inventory Status Management**: Classify stock beyond simple quantity with configurable inventory statuses. These include Unrestricted, Quality Hold, Blocked, In Inspection, Reserved and any custom status your operation needs. Status acts as a tracking dimension. The same material at the same location can exist in several states at once. Status changes follow controlled workflows. Material arriving from a supplier might enter "In Inspection" before release to "Unrestricted." Blocked stock is left out of availability calculations. Your team never promises material that is not ready to use.
  - Unrestricted, Hold, Blocked statuses
  - Custom status definitions
  - Status as tracking dimension
  - Availability rules by status
- **Inventory Dashboard**: Build custom dashboards with widgets made for your inventory management priorities. Monitor stock coverage health, adjustment trends, transfer volumes, expiry alerts and journal processing times. All of it sits on one screen. Share dashboard setups across your team. Everyone, from the Fleet Superintendent to the Warehouse Manager, sees the KPIs that matter to their role. Real-time metrics update as transactions are posted, not in a nightly batch.
  - Per-role widget layouts
  - Real-time metric cards
  - Customizable dashboard grids
  - From a widget to the records behind it
- **Adjustment Reasons**: Each adjustment carries a reason from your own list, such as damage, loss or a measurement error. No stock change goes unexplained, and you can filter the reasons across locations and periods.
  - Reason on every adjustment
  - Your own reason list
  - Filter by reason, location and period
- **Inventory Analytics**: Stock analytics come on 4 pages: stock, movement over time, inventory health and critical items.
  - Stock and movement over time
  - Health of stock against its levels
  - Critical items at a glance
- **Journal Line Tracking Details**: Each journal line in the grid view can expand to show the full tracking breakdown underneath. Click into any arrival, adjustment or transfer line to see each batch, serial number and owner assigned to that transaction. Tracking line drill-down gives the complete history of any stock movement. It runs from the original goods receipt through each transfer, adjustment and consumption event. One click takes you from summary to full detail.
  - Master-detail grid expansion
  - Tracking line drill-down
  - Inline batch/serial details
  - Full line-level audit info
- **Complete Audit Trail & Event History**: Each transaction, approval decision, status change and data change is recorded in the event history. You see who did what, when and why. From journal creation through the approval chain to final posting, you can trace the complete lifecycle. Built for regulated maritime operations where audit readiness is not optional. ISM Code, ISO 9001, TMSA and class society auditors will find a clean record of each inventory event across your fleet, listed in date order.
  - Every change recorded with who and when
  - Full user attribution
  - Evidence for ISM, ISO and TMSA audits
  - Exportable audit reports

## Technical abilities
- **Fast Lists at Any Volume**: Journal and on-hand lists filter, sort and group on the server. A fleet with hundreds of thousands of stock records opens them quickly. Each journal line opens to its batches, serials and owners in place.
- **Workflow Lifecycle Engine**: Each journal follows a Draft → Submitted → Approved → Posted lifecycle managed by the workflow engine. Each transition triggers validation, approval checks and event recording. Behavior stays consistent however the data is entered, on screen or through the API.
- **Multi-Tier Approval Rule Engine**: Approval rules are checked on the server at each workflow transition. They test criteria you configure: transaction value, quantity thresholds, material classification and location type. Rules support multi-tier escalation, dual-control authorization and automatic routing.
- **Guaranteed Multi-Location Transactions**: Transfer and internal transfer journals run as single database transactions. Inventory is taken from the source and added at the destination in one step. No phantom inventory, no lost-in-transit records, no partial updates.
- **Real-Time On-Hand Aggregation Pipeline**: On-hand quantities are computed by adding up posted inventory transactions across all configured tracking dimensions. The pipeline runs on demand against live transaction data. There are no stale caches, no nightly batch jobs and no reconciliation drift.
- **Complete Event History**: Each inventory action is recorded as it happens, with who and when. The same record feeds the audit trail and notifications.
- **Office-Ship Synchronization**: The office and the vessel work on the same inventory records while connected, each on its own app.
- **Configurable Tracking Dimension Framework**: Tracking dimensions (Batch, Serial, Owner, Status, Space) are turned on for each material in the master data. The screens, validation rules, data entry forms and grid columns adapt on their own. They show only the dimensions that matter for each material.

## Benefits
- **Complete Stock Visibility Across Your Fleet**: See real-time on-hand quantities across all vessels, warehouses and shore facilities in a single view. No more calling ships for stock checks and no more reconciling spreadsheets. One platform, one truth, fleet-wide.
- **Purpose-Built Workflows for Every Transaction**: There are 7 journal types, so each inventory transaction follows the right workflow, not a generic process. Arrivals link to POs. Adjustments need reasons. Transfers track goods in transit. The right process, each time.
- **Audit-Ready from Day One**: Recorded changes, required reasons and full approval traceability keep your inventory records ready for inspection at all times. ISM, ISO, TMSA and class society audits become a matter of pulling reports, not scrambling for evidence.
- **Controlled, Compliant Stock Movements**: Multi-tier approval workflows and dual-control authorization give high-value transfers, critical stock adjustments and inter-vessel movements the oversight they need. Routine work is not slowed down.
- **From Reactive Correction to Proactive Improvement**: Reason-based analytics turn stock adjustments from isolated corrections into insight you can act on. Spot patterns in damage, loss and discrepancy data, and fix processes, not just numbers.
- **Scales from Single Vessel to Global Fleet**: Pages load from the server, company data stays securely isolated, and the office and ships stay in sync. The system performs the same whether you manage 1 vessel or 500. Grow your fleet without outgrowing your inventory platform.

## Frequently asked questions
### What types of inventory transactions does the module support?
Navatom Inventory supports 7 specialized journal types. Adjustment is for stock corrections with reason codes. Arrival is for goods receipt against purchase orders. Counting is for physical inventory with variance analysis. Movement is for space changes within a location. Internal Transfer is for moves between locations within the same entity. Transfer is for inter-vessel and shore-to-ship movements. Ownership Transfer is for legal entity changes without physical movement.

### Can I set different stock levels for the same material on different vessels?
Yes. The Coverage feature lets you set separate minimum, optimal and maximum stock levels for each material at each location. A tanker and a bulk carrier can have very different coverage targets for the same spare part. Each reflects its own operational profile and trade routes.

### How does the approval system work?
Each journal type supports configurable multi-tier approval rules. They are checked at each workflow transition (Draft → Submitted → Approved → Posted). Rules can use transaction value, quantity, material type, location or any mix of these. Navatom supports escalation levels and dual-control authorization for critical operations. It records each approval decision with full attribution.

### Does Inventory work offline on vessels?
Inventory works in both the ship app and the office app while connected. Both use one shared record for the vessel and the office.

### How does Inventory integrate with Material and Procurement?
Inventory shares the material master with the Material module. Materials, tracking dimensions, units of measure and categories are defined once and used everywhere. Arrival journals link directly to Procurement purchase orders for goods receipt. Each requisition line shows the stock on hand and the coverage levels. Buyers order against real need, from stock need to purchase to receipt.

### Can I track by batch, serial number, and owner simultaneously?
Yes. Tracking dimensions can be set separately for each material. You can turn on any mix of Batch, Serial Number, Owner, Status and Space. Data entry forms, grid columns and validation rules adapt on their own to each material's settings.

### Can I ask Navatom AI how much stock we hold?
Yes. Navatom AI reads the live Inventory records. It sums the stock on hand of a material, by vessel and location, at the moment you ask. It answers only for users who hold the Inventory app.

## Related modules
- [Material](https://navatom.com/products/material): Manage material catalogs, specifications, and cross-vessel standardization.
- [Procurement](https://navatom.com/products/procurement): Streamline purchasing workflows from requisition to delivery with supplier integration.
- [Dashboard](https://navatom.com/products/dashboard): What is due, overdue and waiting for you, for one ship or the whole fleet, on one screen.

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