Know what you needbefore you start buying.
Keep required products, stock on hand, purchasing needs, scanned receipts, and actual job costs connected to the catering event.
Updated July 31, 2026 · 6 minute read
Catering job
Harlow Foundation Dinner
Product job items create demand; inventory and assigned receipts show how that demand is being filled.
One record keeps the details current as the work changes.
The short answer
Portara can compare the product quantities on catering jobs with useful stock on hand, show purchasing shortfalls, and assign receipt line items to the event that required them.
Why this gets hard
A shopping list without the job context is just another list.
What you need depends on the event. What you should buy also depends on stock already on hand and purchases already made.
The event product list and shopping list disagree.
Stock on hand is ignored and the same supplies are purchased again.
A receipt is saved but never assigned to the event.
The final job cost is missing last-minute purchases.
A better workflow
Move from job needs to purchasing and actual cost.
Portara uses product job items, inventory quantities, and assigned receipt lines. It does not calculate recipes or convert guest counts into ingredients automatically.
Add the products and supplies the event needs.
Enter the relevant quantities as product items on the catering job.
Compare the job needs with stock.
Portara’s sourcing view compares job demand with inventory quantities and shows the shortfall.
Buy only what is missing.
Use the purchasing information to guide shopping while keeping the job that created the need visible.
Scan the receipt and assign the line items.
Send purchases to the event job or inventory so the cost and remaining stock are recorded in the right place.
What to look for
Purchasing should connect these four numbers.
Quantity required by active jobs
Quantity currently in stock
Quantity still needing purchase
Actual receipt cost assigned to the event
See it all together
Portara is built for caterers.
Keep event needs, stock, purchasing, receipts, invoices, payments, staff hours, and job cost connected.
Questions, answered
Catering purchasing, in plain English
Does Portara calculate catering ingredients from recipes or guest counts?
No. Portara does not include recipe costing or automatic ingredient scaling. Products and quantities must be added to the catering job.
Can Portara compare event needs with stock on hand?
Yes. The inventory sourcing view compares product demand from jobs with available inventory and shows purchasing shortfalls.
Can receipt items be assigned to a catering event?
Yes. Scan a receipt, review the extracted line items, and assign relevant purchases to the event job or inventory.
Can I see catering job costs?
Portara keeps product costs, assigned purchases, labor, invoices, payments, and employee time connected to the event for job reporting.