Demand by SKU and location, in consistent units; Usable stock, commitments and dated inbound receipts; Actual lead time, MOQ, packaging and service target

Practical supply planning guide · Inventory

When to transfer inventory before buying

A practical planning guide with an illustrative calculation, operating checks and a path from recommendation to approval.

Short answer

Transfer only usable surplus that can arrive on time without causing a shortage at the source. Compare the full cost and let an owner approve the action.

First scope

Start with one SKU and location, then validate the policy on a representative product group.

When to review

Recalculate at each planning review and whenever lead time, demand or confirmed receipts change.

Typical buyer

Supply chain, demand planning, procurement and inventory teams.

Calculation and decisions, step by step

Calculate destination need

Compare demand through the next viable receipt with usable stock, inbound receipts and safety policy at the destination.

Owner: Planning and procurement
Output: Documented calculation and approved decision

Protect the source

Reserve stock for source demand, commitments and safety stock before marking the remainder as transferable. Check batch, expiry, condition and ownership.

Owner: Planning and procurement
Output: Documented calculation and approved decision

Compare a split recommendation

Illustrative example: destination need is 100 units; the source has 180 usable units but requires 120 for its own protected demand. Transferable surplus is 60. Transfer those 60 if they arrive on time and purchase the remaining 40, subject to supplier MOQ. Include handling and transport costs, not just purchase price.

Owner: Planning and procurement
Output: Documented calculation and approved decision

Record the decision

Keep the recommendation, manual adjustments, approver and ERP document number. The documented Sumatec workflow checks safe surplus before recommending purchases or a split between purchases and transfers; these illustrative quantities are not customer results.

Owner: Planning and procurement
Output: Documented calculation and approved decision

Readiness checklist

Demand by SKU and location, in consistent units
Usable stock, commitments and dated inbound receipts
Actual lead time, MOQ, packaging and service target

Common mistakes

Treating sales during stockouts as complete demand
Counting customer orders twice
Using an average lead time without checking variability

Questions to ask vendors

Can I review inputs and edit a recommendation before approval?
How are purchases and transfers returned to my ERP?

Success metrics

Fill rate: units fulfilled / units requested
Stockout days by SKU and location
Inventory value and excess inventory
Recommendation-to-approval time

Where SOBERAN fits

SOBERAN connects demand, inventory, purchasing constraints and human approvals. Review a real SKU-and-location workflow in a demo to confirm data and ERP integration scope.

Talk to SOBERAN