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Plastics and packaging

ERP software for plastics and packaging manufacturers

Bills of materials for moulded items and corrugated boxes, work orders per shift or run, granules and kraft paper in kg, and GST invoices to the buyers who order every month.

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In short

SimpleERP is ERP software for plastics and packaging manufacturers in India. BOMs cost each moulded item or carton from granules, masterbatch, kraft paper, ink and glue, work orders move stock per run, and invoices, purchases and payroll share one ledger.

Illustration of a bill of materials with cost roll-up and a work order moving from planned to in progress to completed.

A day in a plastics and packaging business

A packaging unit lives on thin margins and repeat orders, so the cost of one box or one container has to be known, not guessed.

The night shift hands over at seven. The moulding machines ran 500 ml containers for Annapoorna Foods, and the corrugation line made 3 ply cartons for the same buyer's dispatch next week. The supervisor writes the counts on a sheet.

By noon the owner wants to know: is there enough paper for tomorrow, what did the last cartons cost now that kraft rates have moved, and has Annapoorna paid. The answers sit in three places that do not agree.

SimpleERP puts the answers in two documents. A bill of materials says what goes into a batch of containers or cartons, with the wastage you expect, and a work order records what each run actually used and produced. The invoice then issues those goods at real cost, so margin is visible.

Bills of materials

Cost every carton and container from today's material rates

A bill of materials lists the raw material for one batch, the scrap you expect on each line and the labour or power per batch, and SimpleERP rolls it up into a cost per piece at current average rates.

  • Moulded items from granules and masterbatch in kg; cartons from kraft paper, starch, ink and stitching wire.
  • Scrap per line, such as 4% trim on kraft paper, raises planned quantity and cost.
  • Versions when a buyer changes the ply or the GSM; old work orders keep the plan they used.
LinePlanned quantityCost
Kraft paper 120 GSM (4% scrap)436.8 kg @ ₹38₹16,598.40
Corrugation starch18 kg @ ₹45₹810
Flexo ink2.5 kg @ ₹320₹800
Stitching wire3 kg @ ₹110₹330
Labour and powerper batch₹2,400
Total for 1,000 cartons₹20,938.40
Cost per carton₹20.94
Cost roll-up for 1,000 cartons, 3 ply 18 x 12 x 12 inch (BOM v1)

Work orders

One work order per run, and stock moves when the run is done

Raise a work order for each shift or run; completing it issues granules or paper at average cost and receives the finished pieces at the actual cost of that run.

  • Plan pulls the material from the BOM and shows what is short in the source warehouse.
  • Complete with the quantity actually consumed, so a bad run shows up as higher cost per piece.
  • From a sales order: create the work order from a confirmed order line for a buyer's repeat lot.

Purchase and inventory

Granules and paper in kg, finished goods in pieces

Each product has its own unit, so polypropylene granules and kraft paper are counted in kg while containers and cartons are counted in pieces, boxes or a bundle unit you add yourself.

  • Purchase orders and supplier bills for granules, masterbatch and paper receive stock at the bill cost.
  • Low stock list with a reorder level per product, turned into purchase orders grouped by supplier.
  • Warehouses for the raw material store, the factory floor and a finished goods godown, with transfers between them.

Illustration of stock on hand by warehouse at average cost, with a low-stock row highlighted and a movement ledger.

Stock on hand by warehouse, with low-stock rows flagged.

Sales and GST billing

Invoice regular buyers lot by lot against one order

A buyer's monthly order goes in as one sales order, and each dispatch is invoiced against it until the order is complete with GST and HSN on every line.

  • Partial invoicing of a sales order, so the order shows what is still to be dispatched.
  • CGST and SGST or IGST chosen from the place of supply, with an HSN-wise summary on the print.
  • Credit limit per buyer warns you before a new invoice takes them over it.
  • Ageing of each buyer's dues and a customer statement you can print or share.

Illustration of GST tax invoice INV-2026-27-0213 to Ravi Stores with CGST 9% and SGST 9%, round off, a UPI QR code and the amount in words.

A tax invoice with CGST, SGST and an HSN summary.

People and payroll

Pay machine operators from the attendance you already mark

Mark attendance for every operator and helper on one screen, with shifts and grace minutes, and payroll reads paid days and loss of pay from it.

  • Day and night shifts with weekly offs, so late marks are consistent.
  • Salary structures with Basic, HRA, allowances, PF and PT per employee.
  • Advances recovered through the payslip, month by month.

Illustration of a payslip with Basic, HRA, provident fund and professional tax lines and net pay of ₹27,660.

A payslip with Basic, HRA, provident fund and professional tax.

Ready on day one

What you don't have to set up

SimpleERP seeds the routine parts when you sign up.

  • A chart of accounts with inventory, cost of goods sold and a manufacturing overhead account already mapped.
  • GST rates split into CGST, SGST and IGST, ready to pick on each product.
  • Units such as kilograms, pieces, boxes and metres, plus document numbering on the April to March year.
  • Seven ready-made roles, from Owner to Employee self-service, to copy and adjust later.

One system

The modules that do this work

A completed work order writes stock movements and a journal; the invoice for the finished goods writes the sale, the cost and the GST.

Honest limits

What SimpleERP does not do for plastics and packaging yet

We would rather you know now than find out in month two.

  • Machine, mould or die scheduling. Work orders carry planned dates, not machine slots.
  • Roll or reel tracking by weight. Kraft paper is one stock figure in kg per warehouse, not reel by reel.
  • By-products from a run. A work order produces one product, so record regrind or saleable waste with a stock adjustment and a reason.
  • Batch or lot tracking for food-grade traceability. Stock is tracked by product and warehouse.
  • E-way bill generation or e-invoice (IRN) through the government APIs.

Getting started

Start with your first invoice

  1. Sign up with your phone

    Name, phone number and a password. No card for the seven-day trial, and email is optional.

  2. Tell us about the business

    Type your GSTIN and the state fills itself. Accounts, GST rates, units, roles and numbering are seeded for you.

  3. Add what you sell

    Import your granules, paper and finished items from a CSV file with opening stock per warehouse, or add them one by one. Then build the BOM for your best-selling carton or container.

  4. Post your first GST invoice

    Pick the customer, add lines and save. Your first GST invoice can be out within 10 minutes of signing up.

FAQ

Questions, answered

Which GST rate applies to plastic packaging and cartons?

It follows the HSN code of each product. Plastic articles for packing, such as containers and caps, are usually classified under HSN 3923, and cartons and boxes of paper or paperboard under HSN 4819; the rates for the two are not the same. Set the HSN code and rate on each product and the invoice applies CGST and SGST or IGST from the place of supply. Rates change, so confirm the rate for your goods with your CA or the GST portal before you rely on it.

Can SimpleERP track each paper reel by weight?

No. Kraft paper is held as one product per GSM or size, with a single quantity in kg per warehouse at weighted average cost. Enter the total kg on the supplier bill and correct it with a physical count at month end.

How do I record wastage and regrind from a moulding run?

Plan the expected wastage as a scrap percentage on the BOM line. On completion, enter the granules actually used; any extra raises the cost per piece. If you reuse regrind, keep it as its own product and bring it into stock with a stock adjustment and a reason.

Do machine operators need a login?

No. Operators can be employees in payroll without a login, with attendance marked by a supervisor. To let them see their own payslips and leave, invite them with the Employee self-service role.

Can I move from Tally or Excel in the middle of the year?

Yes. Import products from a CSV file with opening stock per warehouse, enter customers and suppliers on screen with their opening balances, and start posting from a date your CA agrees. Switching at the start of a month keeps opening stock clean.

Related

Run your whole business from one simple place.

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