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Plastic injection moulding units · WhatsApp marketing

Send the sample photo and tolerance report the moment it is ready.

WhatsApp is where much of the day-to-day RFQ and sample approval conversation with a buyer already happens. A moulding unit needs a routine for sending drawings, sample photographs and tolerance reports there, without losing track of what was agreed. GullySales sets up this routine and keeps a record alongside the RFQ log.

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Scope, fee, reporting and term are agreed in writing after we have read your brief and spoken to you.

Realistic editorial illustration of plastic injection moulding units at work in India

What WhatsApp marketing means

WhatsApp marketing is sending updates, offers and reminders to customers on the app most Indian buyers already check daily. GullySales sets up business WhatsApp, writes the message templates and keeps the list consented and current.

Also for plastic injection moulding units

Sales and marketing for plastic injection moulding units, the overview.

Last updated 13 Nov 2026.

For plastic injection moulding units

Where it usually goes wrong, and what we would do.

  • “Sample photos and reports move approval faster than a courier alone”

    A photograph of the sample and a quick tolerance reading, sent on WhatsApp the day it comes off the machine, gives the buyer something to react to immediately. That beats waiting days for the physical sample to arrive.

  • “Quoting details need to be recorded, not left in a chat thread”

    A tooling lead time or price agreed over WhatsApp can be forgotten or disputed later if it is not copied into the RFQ record. Every commitment made there needs a written note kept alongside it.

  • “A quick reply on WhatsApp can decide the shortlist”

    A buyer messaging a quick clarifying question about a drawing before sending the full RFQ is testing responsiveness. A fast, specific reply keeps the unit on the list for the formal enquiry.

What we do

What we deliver for plastic injection moulding units.

The work available for this need. We agree the deliverables and responsibilities for your engagement in writing.

  1. A sample photo and tolerance reporting routine

    A routine for sending a photograph and quick tolerance reading over WhatsApp the day a sample comes off the machine.

    Result: A buyer reacts to the sample before the physical piece even arrives.

  2. A commitment log for WhatsApp conversations

    A simple habit of copying any price, tooling lead time or approval agreed over WhatsApp into the RFQ record the same day.

    Result: A commitment made in chat can still be checked later.

  3. Ready wording for quick clarifying questions

    Prepared, specific replies for the quick drawing or material questions a buyer sends before the formal RFQ arrives.

    Result: A fast, specific reply keeps the unit on the shortlist.

  4. A WhatsApp Business profile linked to the record

    A WhatsApp Business profile set up with the unit's details and linked to the same RFQ record used for email and calls.

    Result: Nothing said over WhatsApp gets lost outside the main record.

How the result is measured

  • Messages delivered
  • Reply rate
  • Enquiries from WhatsApp

Recorded as a baseline before work starts, so every later report has an honest comparison.

Read the full WhatsApp marketing and automation page

What must be in place first

What a moulding unit settles before a buyer's drawing and sample photographs arrive on WhatsApp.

A sales number that outlives the person
Register WhatsApp Business on a company number held by the sales desk and shown on the quotation and the IndiaMART listing. A buyer who saves the number should still reach you when the sales engineer moves on.
Consent from the buyer's contact
Ask the purchase or quality engineer, in the RFQ acknowledgement, whether status updates on this part may come on WhatsApp. Record the name and date. Numbers from a trade fair visiting card need a short permission message first.
Catalogue of processes and materials
List the processes you run, such as insert moulding or two-shot, the materials, such as PP, ABS, PA and PC, and the machine tonnage band. Match it to the capability sheet so the two never disagree.
Which messages need a template
A sample dispatch note or a reminder that a first-article report is pending, which you start yourself, needs an approved template. Read WhatsApp's current business policy and pricing before sizing the send.
Drawings and reports stay in the RFQ log
Say that a drawing, a revision, a tolerance report or a price accepted on chat is copied to the RFQ log with the part number and revision letter. The chat is a conversation, not the record of approval.
Opt-out and a named contact
Each broadcast has a way to stop, and each reply names the engineer who handles that part. Large OEMs may bar WhatsApp for formal approvals; ask the buyer which route the sample sign-off must follow.

Who it is for

This is written for these plastic injection moulding units.

  • Automotive component moulders
  • Appliance and consumer durable moulders
  • Packaging and closure manufacturers
  • Electronics and electrical enclosure moulders
  • Medical and pharmaceutical packaging moulders
  • Toy and consumer goods moulders
  • Precision and tight-tolerance job shops
  • Two-shot and insert moulding specialists
  • Custom and low-volume prototype moulders

Not for

It is not the right fit if.

  • Buyers in your OEM segments require formal quotations and approvals through email or a portal, so WhatsApp would be an extra route that no one records.
  • Nobody is allowed to take a sample photograph or measurement report on the floor, so the routine would have nothing to send.

Before you decide

Agree the work. Know how to judge it.

WhatsApp marketing for plastic injection moulding units: use these checks to prepare, choose the scope, and review what changes.

Bring the right evidence

Describe how the contact list was collected, what people asked to receive, and which messages are currently sent. Include opt-outs and replies when reviewing campaign performance.

Make the scope clear

Agree the audience, message purpose, sending system, and response owner. Separate promotional communication from order or service updates, and check current platform requirements before launch.

Check the work in use

Test the message with a small appropriate audience before wider use. Check links, reply handling, opt-outs, and whether the response leads to a relevant conversation or order.

Know when to change course

Do not use an unexplained contact list as a shortcut to demand. If recipients do not expect the message, resolve the permission and relevance questions before sending.

These are discussion points, not a fixed package. GullySales confirms the deliverables, responsibilities, fee, and term in writing after reading your brief and speaking with you.

Before we start

What to have ready before the work starts.

The records, access and decisions this work needs from plastic injection moulding units. Anything missing is noted in the written scope, with who will supply it.

The phone and number that will be used
A decision on which phone and SIM hold the business number, and who has access. A number on one salesperson's personal phone leaves with that person. If the number is personal today, we plan a move to a business number before anything else.
A sample of anonymised chat threads
Some chat exports or screenshots, with names covered, showing real exchanges about drawings and samples. They show how buyers write. Without them, the quick replies come from your description and may not match the questions asked.
Permission from buyers to be messaged
A note of which buyers are happy to hear from you on the app, in their own words or through a past message. We do not send promotional messages to those who have not agreed. Check with your own adviser about the current rules.
A rule for who may promise what
A written statement of who on your team may confirm a date, a price or a tolerance in a chat. A casual promise typed on the app binds the plant. If there is no rule, we draft one for the owner to approve.

How it works

How the whatsapp marketing work runs

The work itself, in order. How an engagement starts, from your brief to a written scope, is set out on our method page.

  1. 1

    Read the drawings and photos in your chats

    We go through the WhatsApp threads that matter with the quoting engineer and the owner, and list what buyers send: revised drawings, sample photographs, tolerance reports, questions about packing. Names can be covered. We note what gets lost, and which messages decided a shortlist.

  2. 2

    Choose the Business app or the API

    We explain the difference between the WhatsApp Business app and the paid business platform, and you choose according to how many people handle chats. For a small quoting team, the business app is enough. You decide who holds the number and which phone it lives on.

  3. 3

    Fill in the profile and write quick replies

    We fill in the business profile with the plant address, the hours and a short description, and write the quick replies your team uses: a request for a drawing, a note on samples, a note on packing. Your quoting engineer corrects the wording. Only contacts who have messaged you or agreed to be messaged receive anything else.

  4. 4

    Agree where a chat becomes a record

    We write the rule that turns a chat into an entry in the RFQ record: any drawing, any quantity, any date promised, any change to a tolerance. Your people write it down the same hour. Without this, a promise made on the app is invisible to everyone but one phone.

  5. 5

    Test the routine with a dummy RFQ

    We send a dummy drawing and a sample photo through the number and follow them through the reply, the record and the log entry, with the staff using their real phones. You sign off when the information survives intact. Gaps found in the test are corrected before any buyer meets the routine.

Where this fits

Three pieces of sales work, in this order.

This work sits inside sales process design, at stage 0, foundation. The audit comes before it, and sales management keeps it running.

  1. Step 1

    Sales audit

    Find where deals are being lost and what to fix first.

    Start here if you cannot say where orders are lost.

  2. Step 2 · you are here

    Sales process design

    One written way to sell, from first enquiry to repeat order.

    Start here if every salesperson sells differently.

  3. Step 3

    Sales management

    A target, a review routine and someone who owns the number.

    Start here if the team has targets and no routine.

Tell us what you need Your brief is read before we call. Scope, fee and term in writing.

FAQ

Questions owners ask before they call.

Not here? More answers, or ask on WhatsApp.

Tell us what you need
Is WhatsApp appropriate for a formal RFQ process?
Yes, alongside email. Buyers use it for quick questions, sample photos and updates, as long as final quotes and commitments are also recorded in writing.
How do we stop details getting lost in chat messages?
By copying any price, lead time or approval agreed over WhatsApp into the RFQ record the same day, so nothing depends on scrolling back through a chat thread later.
A buyer sends a revised drawing on WhatsApp as an image. Can we quote from it?
Quote only from a file with a revision number, in the format the buyer's system issues. An image can hide a changed dimension or tolerance. Ask for the drawing as a document, and record the revision letter on the quote and the RFQ log.
Should we send sample photographs of rejected parts to the buyer on WhatsApp?
Only if the buyer asks, and with the part number, lot and the reason for rejection written beside the photograph. For anything affecting a delivery date, follow the chat with the formal deviation or rejection note, so both sides hold one record.
Can staff keep using their own phones for buyer chats?
They can, but the unit then has no copy of what was agreed and loses the chat when the person leaves. We suggest a business number for RFQ and sample conversations, with the record updated by the person handling the chat. If staff must use personal phones for now, the rule that turns a chat into an entry in the record matters even more, and we make it the first thing the team learns.
Can we send sample reports and photos through the app?
Yes, and for sample approval it is a practical way to reach a buyer, provided the photograph shows the part clearly and the report states the dimensions measured against the drawing. Send the formal first article report by email as well and log both in the record, because the chat can be lost. Do not send another customer's part or drawing in the same thread, and check the buyer's own rules on sharing documents.
How much does it cost?
There is no price list, because the work differs by business. The fee is scoped after we have read your brief and spoken to you, and put in writing before anything starts, split into our time, your media spend and production.
How long is the contract?
The term is agreed in writing after we have spoken, along with the fee and the reporting. It is never a default twelve months, and renewal is decided on the numbers against the baseline recorded at the start.
How soon will we see results?
It depends on the trade, the channel and what is already in place. After we have read your brief and spoken to you, we say what we would expect to move first and how it will be measured against the baseline. Nothing here is guaranteed.
Who will actually do the work?
The person you speak to before anything starts. We work from one office in Nagarbhavi, Bengaluru, with no account managers in between.

From the blog

Further reading for plastic injection moulding units.

All articles

More for plastic injection moulding units

Related work to consider.

Closest to this: messaging and automation

Also for plastic injection moulding units

Or start from the overview: sales and marketing for plastic injection moulding units.

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