Module 33 · Core · 8 min read

Reserved, available and the setting that never blocks sales

You will be able to: Calculate Available from On hand and Reserved; Choose between Allow it, Allow it but warn and Block it; Explain what Count parts reserved for approved jobs changes.

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Small garages sell what they have and also what is arriving tomorrow. Salman's rule for the product is that stock quantity must not stop a sale unless the owner chooses it. That choice is a single company setting in Settings, Costing, in the card Selling more than the stock.

The three choices

When a sale is more than the stockWhat happens
Allow it (default)A sale or part issue is never stopped for quantity. Stock may go below zero; the dashboard shows it
Allow it, but warnThe sale or issue goes through and a line says which part is more than the stock
Block itA sale or part issue that takes more than is there, or more than remains after the parts reserved for approved jobs, is refused

The setting covers counter sales and Quick Invoice, job invoices and the issue of parts to a job. A refused Block posts nothing, so nothing shows as issued.

Reserved and available

A part on an approved line of a job that is Approved, WIP or Work Completed, and not yet invoiced, is soft reserved for that job. The reservation is a pure read: no table, no ledger row, and it never blocks work on the job. The counter sees On hand, Reserved and Available, where Available = On hand minus Reserved.

A second setting, Count parts reserved for approved jobs, is Yes by default. Reserved parts are taken off the Available figure only. They stop a sale only when the first setting is Block it. Without Block, the reservation is information: it feeds the Available column and the dashboard's stock warnings.

Ten brake pads, four reservedThe store holds 10 brake pad sets. Two approved jobs reserve 4, so Available is 6. A walk-in wants 8 sets. With Allow it, the Quick Invoice posts and stock goes to 2 with 4 still owed to the jobs. With Allow it, but warn, it posts and a line warns that the part is more than the stock. With Block it, 8 is above the available 6, so the sale is refused until stock is added or the quantity is lowered.
TipSalman's rule is the default for a reason: a garage that cannot invoice a part because the system count is wrong loses a customer, and a wrong count is easier to fix than a lost sale. Use Block it only for a shop with tight control of the store.

Try it in the demo

  1. Open the Garage demo at https://garage.zeyto.app and open Settings, then Costing, and find Selling more than the stock.
  2. Read the three choices and the note under the current one. Do not change it on the shared demo.
  3. Open a part in Parts & services or the Stock hub and look at On hand, Reserved and Available.
Open the live demo

Public demo company, sign in as admin / demoAdmin123. Data refreshes nightly.

Key takeaways
  • The default is Allow it: stock quantity never stops a sale.
  • Available is On hand minus Reserved.
  • Reserved parts stop a sale only when the setting is Block it.
  • A reservation is a read, not a ledger entry.

Check yourself

5 questions on this lesson. Not timed, not the exam, and you can try again. Score 60% or more, and read the lesson, to complete it.

1. Where is the setting for what happens when a sale is more than the stock?

2. What is the default of When a sale is more than the stock?

3. Stock is 10, reserved 4, and the setting is Allow it, but warn. A counter sale of 8 is made. What happens?

4. Reserved parts stop a sale even when the setting is Allow it.

5. A part is reserved for a job in which of these states?

Select all that apply.

Practice questions for this module · Printable study sheet