API manufacturers · WhatsApp marketing
Move sample and document requests off scattered chats and onto one record.
WhatsApp for an API plant is the channel on which purchase and technical contacts ask short questions about a molecule, a pack or a document. GullySales works on how those chats are answered, recorded and moved into the buyer's file.
Scope, fee, reporting and term are agreed in writing after we have read your brief and spoken to you.

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.
Last updated 18 Oct 2026.
For API manufacturers
Where it usually goes wrong, and what we would do.
“Buyers ask the short question on chat”
A purchase executive asks whether a grade is available in a particular pack. The answer is short, but if it lives only in one phone, the company loses the record. Chats need a habit of logging key points.
“A document sent on chat must match the cleared version”
A file forwarded from an old folder can carry an outdated figure. A single library of current documents, with a rule to send only from it, protects the company and the buyer.
“Personal numbers create a gap when staff change”
If a relationship lives on one executive's personal number, it leaves with them. A company number with shared access, or a rule to log every business chat, keeps the relationship with the company.
“Broadcasts to buyers need care”
A bulk message to buyers who did not agree to receive it irritates them. Messaging rules apply, so check the platform's current rules and get the buyer's agreement before adding them to a list.
What we do
What we deliver for API manufacturers.
Every deliverable, what it covers for you, and the result it is there to produce. Nothing here is an extra.
A WhatsApp Business setup
A business profile with company name, description and the molecule list, on a number the company owns.
Result: A buyer who saves the number sees a business profile with your company details.
Saved replies for common questions
Cleared replies for sample requests, document lists and pack sizes.
Result: Your team answers the common questions with the same cleared wording each time.
A chat-to-record habit
A short rule on logging the molecule, the request and the promise made after each business chat.
Result: Each important chat has a matching note in the buyer's record.
A document library for sending
One folder of current documents, named by molecule and version, used for every send.
Result: Staff send files from one place and the version on the buyer's phone matches it.
A permission note for lists
A record of which buyers agreed to receive updates and on which number.
Result: You can list who has agreed to hear from you and who has not.
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.
Who it is for
This is written for these API manufacturers.
- Generic API manufacturers for domestic formulators
- Regulated-market API plants with overseas filings
- Intermediate and advanced intermediate producers
- Herbal extract and phytochemical API makers
- Vitamin, amino acid and nutraceutical ingredient producers
- Veterinary API manufacturers
- Peptide and complex molecule producers
- Custom synthesis and CDMO units making APIs to order
How it works
From your first message to the first report.
No open-ended retainer. Every step gives you something in writing.
First
Your brief
You tell us what you need in a few short steps: your business, what you want, where enquiries come from and how they are handled.
After the brief
A conversation and a written scope
We read it, then talk with whoever handles your enquiries. If you want our help, the scope, the fee and the reporting come in writing, and nothing starts before you have read them.
Before work starts
Baseline recorded
The numbers this work is meant to move, such as enquiries, quotations, orders, visits or renewals, written down so every later report has an honest comparison.
After the baseline
The first fix goes live
The fix we agreed to start with is put in place and measured against the baseline, whether that is a reply, a follow-up, a page, a listing or the handover between marketing and sales.
As agreed
Report against the baseline
What moved, what did not, and what changes next, in plain words. How often you get it is set in writing before work starts.
At renewal
Renew on the numbers
The term ends and you decide whether to continue from the results. The length is agreed in writing before anything starts.
How the whatsapp marketing work runs
- 1
Understand current WhatsApp use
We review how customers currently message you and how consistently, if at all, it is answered.
- 2
Audit common questions
We identify the questions that come up repeatedly, which decide what should be automated first.
- 3
Set up automation and templates
An automated first response and quick reply templates are built for the most common needs.
- 4
Connect to the CRM
Conversations are linked to customer records so context carries over between team members.
- 5
Measure and optimise
We track response time and conversion, refining automated responses based on what customers actually ask.
Why us
Why owners pick GullySales over an agency.
Marketing and sales, as one job
Most agencies stop at the enquiry. We also fix what happens after it: the reply, the follow-up, the quote and the CRM.
The person on the first call does the work
No account managers in between. You are never handed to someone you have not met.
A baseline before anything starts
Your numbers are written down on day one, so every later report compares against something honest.
The fee in writing, split three ways
Our time, your media spend and production on separate lines. You always see what goes to us.
No guarantees we cannot keep
The term is agreed in writing and never a default twelve months. We never promise a ranking or a lead count, because nobody controls those.
One office, and we say so
Nagarbhavi, Bengaluru. We work across India by call and WhatsApp and travel when a session needs to be in person.
#257, 3rd floor, Sri Nanjundeshwara Complex, Nagarbhavi 8th Block, Outer Ring Road. How we work.
Your brief
Tell us what you need, and we will read it before we call.
Eight short steps about your business, what you want and who decides. Most questions are a tap, and you can skip any you would rather answer on the call.
FAQ
Questions owners ask before they call.
Not here? More answers, or ask on WhatsApp.
Should we use WhatsApp for sending samples information?
Is the WhatsApp Business API needed?
Can we message overseas importers on WhatsApp?
How much does it cost?
How long is the contract?
How soon will we see results?
Who will actually do the work?
What do you need from us?
What if we are not happy with the work?
More for API manufacturers
Everything else we would do for you.
Or start from the overview: sales and marketing for API manufacturers.
Your next practical step
Tell us what you are trying to grow, and we will read it before we call.
Eight short steps, mostly taps. Skip anything you would rather answer on the call.