Wave Fulfillment, Cluster Carts & Serpentine Routing

1. Overview & Business Value#

This comprehensive operational guide details the architecture, business workflows, configuration parameters, and execution steps for Wave Fulfillment, Cluster Carts & Serpentine Routing within SmartERP.

Wave Fulfillment & Cluster Picking#

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2. Prerequisites & Security Access Groups#

• Required Modules: stock, smarterp_wms_enterprise
• Security Groups:
  • Warehouse Clerk (Technical ID: stock.group_stock_user)
  • Warehouse Manager (Technical ID: stock.group_stock_manager)
• Master Data Dependencies: Multi-warehouse aisles, racks, shelves, bins, putaway rules, cycle count schedules, and barcode terminal profiles.

3. Step-by-Step Configuration & Execution#

Step 1: Navigating to the Module Interface#

1. Log into your SmartERP instance at https://smarterp.et/odoo.
2. Open the main App Switcher (grid icon in the top-left corner).
3. Select the Inventory app icon.
4. From the top navigation bar, open Inventory → Operations → Multi-Warehouse Operations / Putaway Rules / Wave Picking.

{screenshot:wave-and-cluster-picking-fulfillment-app-switcher-navigation}

Step 2: Creating and Parameterizing Records#

1. Click the New button in the top-left control panel.
2. Complete the mandatory fields in the record form:
   • Source Location (Mandatory): Warehouse physical bin or staging zone
   • Destination Location (Mandatory): Target storage shelf or dispatch bay
   • Product & Quantity (Mandatory): Inventory items with standard units of measure
   • Operation Type (Mandatory): Internal transfer, putaway, wave pick, or delivery order
3. Configure optional operational parameters and localized tags as required:
   • Barcode Scan Verification (Optional): Mandatory barcode scanning confirmation
   • Pallet / SSCC Package ID (Optional): Serialized shipping container code
   • Assigned Warehouse Equipment (Optional): Forklift, reach truck, or manual pallet jack
4. Click the Save icon in the control bar to commit the record.

{screenshot:wave-and-cluster-picking-fulfillment-record-creation-form}

Step 3: Validating and Processing Transactions#

• State Transitions: Execute operational state progression (Draft Picking → Waiting Availability → Reserved → Wave Pick In Progress → Pack Checked → Done).
• Ledger & System Impact: Updates stock valuation layers dynamically and adjusts inventory lot quantities across designated warehouse storage locations.
• Audit Verification: Automated recording of author ID, timestamp, and immutable revision history.

{screenshot:wave-and-cluster-picking-fulfillment-transaction-processing-state}

S-Shape Serpentine Route Algorithm#

To prevent picker backtracking across warehouse aisles, each bin location calculates a deterministic serpentine sequence:

• Odd Aisles ($A_1, A_3, \dots$): Traversed in ascending bay order ($B_1 \to B_n$).
• Even Aisles ($A_2, A_4, \dots$): Traversed in descending bay order ($B_n \to B_1$).

$$\text{Pick Sequence} = (\text{Aisle} \times 1,000,000) + (\text{EffectiveBay} \times 1,000) + \text{Level}$$

When a wave is released, all move lines across all batched delivery orders are sorted strictly by x_pick_sequence ASC, providing the warehouse picker with an optimal single-pass path.

Automated Wave Generation Wizard#

The Batch Wave Wizard (stock.picking.wave.wizard) enables supervisors to:

1. Select target warehouse and outgoing delivery operation type.
2. Filter orders by zone or priority.
3. Automatically batch up to $N$ ready orders (default 8).
4. Assign to a Cluster Cart with multi-tote slots.

Multi-Tote Cluster Carts#

A Cluster Cart (stock.cluster.cart) contains individual tote compartments (stock.cluster.cart.bin), each equipped with a unique barcode (CART-01-T01) and visual pick-to-light color identifier:

• As the picker moves along the serpentine path, the scanner prompts: "Pick 3 units of SKU A into Cyan Tote 1 (Order SO001)".
• This enables picking multiple customer orders simultaneously with zero cross-contamination.

4. Advanced Configuration Points#

• Automated Actions & Scheduled Tasks (Crons):
  • Inventory: Cycle count schedule trigger (stock.ir_cron_cycle_count): Runs weekly to select locations for scheduled physical cycle counting
  • WMS: Auto-replenish forward pick bins (stock.ir_cron_replenish): Runs daily to trigger internal moves from bulk storage to picking faces
• Custom Print Templates & Reports:
  • Warehouse Storage Bin Location Map & Occupancy
  • Stock Valuation Summary by Storage Location
  • Wave Picking & Packing Slip with Barcode Verification
• Multi-Company Rules: Record-level security isolation under Company 1 (Ashewa Technology Solutions S.C.), preventing cross-company ledger leakage across parent and subsidiary legal entities.

5. Comprehensive Troubleshooting Matrix#