Karol Leszczyński Build & Develop PL

Business process automation — time reclaimed.

Copying data between programs, issuing the same documents, assembling the report every Monday. Work that comes back every week can usually be done once and left to a machine. I connect the programs you already use and arrange them so the data moves between them on its own.

from 3,000 zł
starting price of an implementation
24/7
the automation works unattended
70+
sites I run on automation myself

Scope

What can be automated.

Below are the things people ask about most often. If your task isn't here, tell me about it — one conversation is usually enough to know whether and how it can be handed to a machine.

Sales and orders

  • orders from your store and Allegro in one place
  • confirmations and status updates sent on their own
  • orders handed off to production or the courier
  • a reminder about an unpaid cart

Invoices and accounting

  • an invoice issued the moment an order is paid
  • documents delivered straight to your accountant
  • reminders ahead of upcoming payment deadlines
  • monthly summaries with no manual math

Warehouse and suppliers

  • stock levels pulled from the wholesaler and updated on their own
  • supplier price lists converted into your prices
  • a heads-up when a product is running out
  • stock kept consistent between the store and Allegro

Customer service

  • form inquiries landing straight in the CRM
  • each case assigned to the right person
  • an automatic reply with a contact date
  • reminders about appointments and contract renewals

Reports and summaries

  • a sales report in your inbox every Monday
  • data from several systems gathered in one place
  • charts refreshed without exporting to a spreadsheet
  • an alert when the numbers drift from the norm

Content and marketing

  • posts and offers published without manual pasting
  • a newsletter sent when a new product is added
  • social media posts from a prepared queue
  • offers updated on price-comparison sites

Examples from real implementations

Automations that work for me every day.

Everything below runs in my own products and at my clients', continuously, for years.

One stock level in two places

A motor store sells on its own site and on Allegro at the same time. A sale in one channel immediately removes the item from the other — and the other way round.

The risk of selling something no longer on the shelf disappears.

Sites that rebuild after a price change

Two sites pull data from the main store and rebuild themselves after every stock or price change, double-checking every half hour on top of that.

The offer stays current everywhere, without a single click on your side.

A product exposed to other tools

Smart-Copy publishes a public API and webhooks, which lets it run in Zapier, n8n and WordPress. Customers wire it into their own processes without my involvement.

Your product starts working with the tools your customers already use.

Jobs that watch over themselves

My servers run dozens of scheduled jobs: database backups with a week of retention, availability checks, domain renewals, reports. Each has a watchdog that reports problems.

You learn about a fault from a notification, before a customer notices it.

Tools

What I build this with.

I match the tool to the task and to how long it is meant to run. For simple flows the ready-made platforms come out cheapest, while for jobs meant to last years a custom script pays for itself within a few months.

Zapier

The largest library of ready-made connections between popular apps. A good fit for simple flows and a quick start. Billed monthly by the number of operations.

n8n

A tool I can host on your own server. Suited to elaborate scenarios, and the fee does not grow with the number of operations.

Make

A comfortable visual editor with good support for branches and loops. A solid choice when a process has many conditions.

Custom script

Code written for one job, run on a server at a set time. The cheapest to maintain for tasks meant to run for years.

I give my recommendation with the quote, along with each option's monthly cost. The choice stays with you.

Integrations

Systems I connect.

Below are the connections I configure most often. If your program isn't here, it can usually be connected through an API or file exchange — I check that at the quoting stage.

Sales

  • Allegro
  • BaseLinker
  • WooCommerce
  • PrestaShop
  • Shoper
  • Shopify
  • Ceneo
  • Google Merchant

Accounting and invoices

  • Fakturownia
  • InFakt
  • wFirma
  • Comarch ERP
  • Subiekt GT and nexo
  • iFirma

Sales and contact

  • Pipedrive
  • HubSpot
  • Livespace
  • Firmao
  • Google Sheets
  • forms on your site

Payments and shipping

  • Przelewy24
  • PayU
  • Stripe
  • InPost
  • DPD
  • DHL
  • Furgonetka

Communication and data

  • Gmail and Outlook
  • Slack
  • Microsoft Teams
  • SMS
  • Google Analytics
  • Search Console

Calendar and tasks

  • Google Calendar
  • Outlook
  • Asana
  • Trello
  • ClickUp
  • Notion

Calculator

How much you get back and when it pays off.

Mark how much time the work you want to hand over takes today, and what the automation should do. The calculator works out the savings, the implementation quote and the month the cost pays for itself.

How many hours a week it takes today
How many people do it
Cost of one hour of work
What the automation should do

Control

An automation under your supervision.

Your data stays with you

The automation works on your accounts and your server. Nothing passes through middlemen you don't know about.

A record of every action

Every run leaves a trace: what was fetched, what was sent and with what result. You can always check what happened.

An alert when something fails

If an external system changes its rules or stops responding, I get a notification and fix it before you notice.

Manual takeover at any time

The automation can be stopped with a single switch, and the process returns to manual handling with no data lost.

Process

From a conversation to the first run.

  1. 01 1 day

    A conversation

    You tell me what you do by hand and how long it takes. Fifteen minutes in, it is usually clear what to automate first.

  2. 02 2–4 days

    Mapping the process

    I write down, step by step, how the work runs today and where the data will flow after the change. You approve it on paper.

  3. 03 1–2 days

    Quote

    Scope, price and deadline. Plus a calculation of how many hours a month you get back.

  4. 04 1–3 weeks

    Build

    I set up the connections and test them on a copy of your data, so nothing in your systems is at risk.

  5. 05 3–7 days

    Live trial

    The automation runs alongside the current routine and we compare results until everything matches.

  6. 06 ongoing

    Handover and care

    Documentation, access and oversight. I adjust the scenarios when your needs or the external systems change.

After launch

You keep a working automation and full visibility.

Documentation and a diagram

You get a drawing of the whole flow and a description of what happens at each step. A new person at the company will understand it without my help.

A view for you

You see the run history and the results, so you can check at any moment that everything went through.

A month of support included

For the first month after launch I tune and fix as much as needed, within the implementation price.

Oversight by subscription

Monitoring, reaction to changes in external systems and scenario development — from 200 zł a month.

Price

An implementation starts at 3,000 zł net.

That is the price for one process: mapping it, building the connections, testing on a copy of your data and launching. Elaborate flows tying several systems together usually land between 6,000 and 15,000 zł.

from 3,000 złnet, one-off

What affects the price:

  • Number of steps A flow with three steps and one with twenty are a different amount of build and testing work.
  • Number of systems Every program that needs connecting means separate authentication, tests and error handling.
  • Conditions and exceptions Rules like “handle orders above a thousand zloty differently” lengthen the build.
  • Data quality A tidy spreadsheet goes fast. Data from many sources, in many formats, needs cleaning first.
  • AI involvement When a process needs to understand the content of an email or a document, a model joins in, along with the cost of its calls.
  • Security requirements Working with personal data or in systems with restricted access calls for extra safeguards.

Oversight of running automations costs from 200 zł a month and covers monitoring, reaction to changes in external systems and small scenario adjustments.

Questions

The questions I get most often.

Where should a company start with automation?

With the one task that eats the most time and repeats every week. We pick it during the first conversation, I implement it first, and only once it is running do we take on the next one. This approach shows the savings immediately and spreads the cost over time.

Do we have to change the programs we use?

No. Automation means connecting what you already have. If you work with Subiekt, a Google sheet and a Gmail inbox, those are exactly the three things I connect. Switching systems is a separate decision you make independently.

How much does automation cost?

A single process starts at 3,000 zł net. An elaborate flow tying several systems together with conditions and exceptions usually lands between 6,000 and 15,000 zł. On top of that comes the tool's fee, if we use Zapier or Make.

When does it pay for itself?

For a task taking five hours a week at 60 zł per hour, you recover about 1,300 zł a month, so a 3,000 zł implementation pays for itself in under three months. The calculator above runs the numbers for your case.

What happens when an external program changes?

I get a notification that something stopped working and I fix the scenario. For implementations under my oversight this happens before you notice the problem. Without oversight, you report it to me and I quote the fix separately.

Can the automation make a mistake in the data?

Every run leaves a record of what was fetched and sent, so a mistake can be traced and reversed. Before launch I test everything on a copy of your data, and for the first days the automation runs alongside the manual routine so we can compare results.

Do I need an IT person on staff for this?

Not to use it. You get a diagram, documentation and a view of the run history. If you do have a technical person, I will gladly hand them full access and pass the project over for independent development.

Can automation be combined with AI?

Yes, and increasingly that is the whole point: reading the content of an email, summarizing a document, assigning a case to a category, or drafting a reply based on your materials. I bill this by actual model calls and set limits so the invoice stays predictable.

Related services

What else I do.

Projects rarely stop at one thing — here is the rest of what I do, each with its starting price.

Get a quote

Tell me what you do by hand. I'll run the numbers.

A few sentences are enough: which task keeps coming back every week and roughly how long it takes. I'll reply with a proposal, a quote and a calculation of when it pays for itself — usually the same day.