The question we get almost every week is not whether AI is useful, but what exactly it is useful for in a company of twenty, fifty or two hundred people. This article answers with a catalog: 40 concrete use cases by department, with what each one solves, how to ask for it, what data you need, how much time it can save as an estimate, and what to watch. At the end, the table of where to start based on the size of your company and the list of what you should never delegate.

Short answer: An SMB starts with one department, three use cases and one metric measured before kickoff. The cases that work best are the ones that happen every week and whose output can be verified in five minutes: qualifying inquiries, quoting, logging calls in the CRM, answering frequently asked questions and reconciling reports. If you handle customer or employee data, a commercial plan is the sensible choice, since by default it does not train on your content.

In this guide
  1. Where does an SMB that wants to use Claude seriously start?
  2. How do you read each use case fact sheet?
  3. Sales: seven use cases
  4. Customer service: six use cases
  5. Marketing and content: five use cases
  6. Administration and finance: six use cases
  7. Purchasing and logistics: five use cases
  8. Human resources: six use cases
  9. Leadership and management: five use cases
  10. Where should you start based on the size of your company?
  11. What data do you need before you start?
  12. What should you NOT delegate to AI?
  13. How do you know whether this is working?
  14. Tricks that are not in the manual
  15. What to do this week

Where does an SMB that wants to use Claude seriously start?

With a single department, three concrete use cases and one person accountable, not with a general transformation plan. The SMBs that get results pick tasks they already do every week and whose output can be verified in five minutes. The rest comes later, once the team trusts the tool and knows how to correct it.

This article is a catalog: 40 use cases spread across seven departments of a typical SMB in Mexico or Paraguay, all with the same fact sheet. You do not have to read it end to end: find your department, pick two or three cases you recognize as a real pain, and start there.

One clarification that saves disappointment: the difference between a consumer plan and a commercial one is not only about features, it is about default data policy. Anthropic documents that in its commercial products (Team, Enterprise and API) your inputs and outputs are not used to train models by default, whereas on the Free, Pro and Max plans that depends on a setting the user turns on. You can see it on the official pages about training in commercial products and in consumer plans (both accessed on September 19, 2026). If you are going to work with customer or employee data, that is the first decision, before choosing use cases.

On costs: as of September 2026, Anthropic's pricing page lists Pro at 17 dollars per month billed annually or 20 per month, and the standard Team seat at 20 or 25 per month, with a two-seat minimum. All prices are in dollars, before tax, and vary by region: confirm on their site before you budget.

How do you read each use case fact sheet?

Every sheet has the same five fields, so you can compare them and decide quickly.

The rule that applies to all 40 sheets: in every one of them, a person reviews the output before it leaves the company. AI drafts, organizes and compares; the responsibility still belongs to whoever signs it.

Sales: seven use cases

This is where the return shows up first, because almost all of a rep's administrative work is text: notes, emails, quotes and reports.

1. Qualifying the leads that come in through the website and WhatsApp

2. Preparing visits and calls

3. Building quotes from the price list

4. Turning the call into a CRM record

5. Staged follow-up without losing contacts

6. Post-mortem on lost deals

7. Weekly pipeline report

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Customer service: six use cases

The value is not in answering faster, it is in answering equally well every time and spotting what repeats so you can fix the cause.

8. A bank of answers to frequently asked questions

9. Draft replies to complaints

10. Classifying and routing tickets

11. Summarizing long WhatsApp conversations

12. Translating the technical manual into plain language

13. Spotting the topics that keep repeating

Marketing and content: five use cases

In an SMB, marketing is usually one and a half people. The goal is not to produce more, it is to sustain a rhythm that does not depend on one Friday's inspiration.

14. Quarterly content calendar

15. Product sheets and catalog copy

16. One piece of content, several formats

17. Customer newsletter from internal material

18. Reading the competition's public messaging

Administration and finance: six use cases

This is where it pays most to be cautious, and where, properly scoped, you recover the most time. The rule here is absolute: AI prepares and reviews, it does not decide and it does not file anything with a tax authority.

19. Reconciling reports and spotting inconsistencies

20. Checking invoices against the purchase order

21. Monthly report in plain language

22. Cash flow scenarios

23. First read of contracts

24. Preparing the month-end documentation

Purchasing and logistics: five use cases

Buying well means comparing well, and comparing quotes in different formats is exactly the kind of tedious task worth delegating.

25. Comparing supplier quotes

26. Standardized requests for quotation

27. Import document control

28. Planning replenishment

29. Evaluating suppliers with real criteria

Human resources: six use cases

This is the department with the most benefit per hour invested and the most delicate one, because you are working with people's data. Nothing that follows replaces a human decision.

30. Job descriptions and job postings

31. First read of applications

32. Structured interview script

33. A 30-day onboarding plan

34. Internal policies people can actually read

35. Reading an employee survey

Leadership and management: five use cases

The value for management is not in generating text, it is in reaching decisions with the information organized and the questions already framed.

36. Weekly dashboard with commentary

37. Preparing committee meetings

38. Analyzing a decision with scenarios

39. Internal announcements

40. Minutes and tracking of agreements

Where should you start based on the size of your company?

The order depends less on your industry than on your headcount, because that determines who has time to sustain the habit.

SizeStart withWho owns itWhat not to do yet
1 to 9 peopleCases 1, 3, 4 and 8: qualifying inquiries, quoting, recording and answering frequently asked questionsWhoever answers the messages today; an individual paid plan is enough to startIntegrations and connectors. First make sure the tool gets used every day
10 to 49 peopleCases 1, 5, 8, 19 and 30: sales, service, report reconciliation and job openingsOne person per department, with a shared project per departmentComplex permission policies. A Team plan and basic roles are enough
50 to 250 peopleThe same ones, plus 36 (dashboard with commentary) and 13 (root cause of inquiries)A cross-functional owner with support from ITRolling out across all seven departments at once. Two departments per quarter is a sustainable pace

In all three cases the sequence is the same: one department, three cases, four weeks, one metric. If the metric did not move, change the use case before you change the tool. The phase-by-phase implementation guide works through that calendar.

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What data do you need before you start?

Less than you think, but organized. Almost every failed attempt comes down to the base material not existing, not to the tool.

All of that lives better in a shared space than in one person's inbox. Projects have their own knowledge base and instructions, and on paid plans they use retrieval-augmented generation to expand capacity by up to ten times. To package the way your company works, skills are folders of instructions in Markdown available on every plan. We go into it in the Projects guide.

Base instructions for a department project (copy and adapt):

You work for [company], which [what it does] in [country]. This department handles [function].

Always: answer in the format I ask for, with sentences under 20 words and numbers before adjectives.

Never: invent data, prices or deadlines. If a piece of information is missing, write [MISSING: what data] and move on.

Before delivering: tell me what information would have helped you do it better.

To connect with what you already use there are native connectors to Google Drive, Gmail, Calendar, GitHub, Microsoft 365, Slack and Salesforce, and MCP connectors for everything else. On Team and Enterprise the administrator can authorize them for the whole organization.

What should you NOT delegate to AI?

There are tasks where the time saved does not justify the risk, and others where it simply is not appropriate. This table is worth pasting into your internal policy.

Do not delegateWhyWhat you can do instead
The final decision to hire, fire or disciplineIt affects a person's life and requires human judgment and accountabilityOrganize information, prepare questions and structure the process
Filing tax obligationsIt is done on the official platforms and the responsibility belongs to the company and its accountantReview, reconcile and prepare documentation before filing
Legal advice or opinionsIt requires a licensed professional and knowledge of the specific caseRead a contract, extract quoted clauses and arrive prepared to the consultation
Any figure that leaves the company unverifiedA misquoted number in a proposal or a report costs credibility or moneyDraft the document flagging the gaps for a person to fill in
Health, safety or technical compliance assessmentsThere is regulation and professional liability involvedSummarize the applicable rule and build the checklist the specialist will review
Sensitive communications without human reviewBad news written badly does more damage than the news itselfPrepare drafts and anticipate the questions the recipient will ask
Personal data you do not need for the taskLess data exposed means less risk, and data protection regulation requires itWork with the minimum information, already anonymized

A short and necessary disclaimer: this is not legal or tax advice. In Mexico and in Paraguay, the handling of personal data and tax obligations are governed by their own regulations and are worth checking with your advisor. On electronic invoicing we have material for Mexico and Paraguay, and on customer data, Law 7593.

How do you know whether this is working?

With one metric per department, measured before you start. Without a baseline, any improvement is just an impression.

DepartmentSimple metricHow to measure it
SalesMinutes between the end of a call and the follow-up going outTimestamp in the CRM or in the sent email
Customer serviceFirst response time and number of repeat inquiriesA report from the ticketing system, or a manual count one week a month
MarketingPieces published per month against the calendarThe calendar itself, reviewed on the last Friday of the month
AdministrationDays the monthly close takesStart date and delivery date to the accountant
PurchasingHours per quote comparisonA simple log kept by the purchasing lead
Human resourcesDays from posting the opening to the final shortlistDates from the process itself
LeadershipAgreements with an owner and a date per meetingThe minutes, counting how many agreements ended up with no owner

Four weeks is a reasonable window to see movement in an operational metric. If it does not move, review the use case before the tool: almost always, the task chosen is one that is not done every week. The adoption and return guide goes into detail.

Tricks that are not in the manual

The shortcuts that separate a team that tries AI for two weeks from one that actually adopts it.

  1. Pick weekly tasks, not annual ones. A case that happens once a quarter never builds a habit. Start with what repeats every week, even if it looks minor.
  2. Upload the file, do not describe it. Anthropic documents file uploads and the creation and editing of spreadsheets, documents and presentations. Working on the real file saves half the work.
  3. One project per department, not one per person. Knowledge that lives in a personal chat disappears when that person goes on vacation.
  4. Always ask for the list of what is missing. Before the output, ask it to list the data it would need and does not have. That prevents 80% of invented results.
  5. Ban filling gaps, in writing. The instruction to write a marker such as [MISSING: what data] instead of filling it in belongs in the project instructions, not in every message.
  6. Start with the task the team hates. Adoption is not won with the most profitable task, it is won with the most annoying one: that is where people pitch in on their own.
  7. Save the brief, not the output. A shared document with the ten briefs that work is worth more than a hundred scattered conversations.
  8. Strip out personal data you do not need. Names, ID numbers, phone numbers and addresses that are not useful for the task get deleted before pasting. It removes the problem at the root.
  9. Turn off chat rating if you handle sensitive data. On Team and Enterprise the owner can disable feedback submission in the organization settings: that is the route by which a conversation could be retained for up to five years, according to the privacy documentation.
  10. Use the model that fits the task. The official models page, accessed on September 19, 2026, recommends starting with Claude Opus 5; Sonnet 5 balances speed and intelligence, and Haiku 4.5 is the fastest, which is usually enough for short, repetitive tasks.
  11. Take advantage of the free training. Claude Academy publishes courses and tutorials at no cost. They do not grant a credential and there is no official Anthropic certification: they are common ground for the team, not a qualification.
  12. Review once a quarter, not every week. If the instructions change all the time, the team stops trusting them.

What to do this week

Five days that leave one thing working, rather than seven half-done.

  1. Monday. Pick one department and three cases from this list. Write down that department's metric and its value today. Without that number, do not start.
  2. Tuesday. Gather the base material: price list or taxonomy, plus 10 to 15 examples of what you consider a good result. Anonymize whatever needs it.
  3. Wednesday. Create a project for the department, upload the material and write the instructions: how you write, what you never promise, and what to do when information is missing.
  4. Thursday. Run the three cases on real work from last week, whose outcome you already know, and compare. Correct the instructions, not the outputs.
  5. Friday. Half an hour with the department team: what gets done, what never gets delegated, and who reviews before anything goes out. Schedule the measurement four weeks out.

Checklist before scaling to another department

When you want to move from scattered cases to a program with a calendar, the next step is the eight-week training program, and the ground rules are worth setting with an internal AI use policy. If you would rather do it with support, at Uniamos we work through these cases with each department's real data.

Frequently asked questions

How many use cases should you start with at once?

Three, in a single department. More than three scatters attention and none of them turns into a habit. When those three work without anyone having to be reminded, you add the next block. Two departments per quarter is a sustainable pace even in companies of 50 to 250 people.

Are the time savings in this article measured data?

No. They are estimates to calibrate expectations, based on our training experience, and they are declared as such in each sheet. They depend on team size, data quality and practice. The only reliable figure is the one you measure yourself: note the baseline before you start and measure again at four weeks.

What plan do I need if I am going to handle customer data?

A commercial one. Anthropic documents that in Team, Enterprise and API your inputs and outputs are not used to train models by default, whereas in Free, Pro and Max that depends on a user setting. On top of that, in Team and Enterprise the owner can disable feedback submission in the organization settings. As of September 2026 the standard Team seat costs 20 dollars per month billed annually or 25 per month, with a two-seat minimum; confirm on their site.

Can I use AI to file taxes or electronic invoices?

Not to file them. Filing happens on each country's official platforms and the responsibility belongs to the company and its accountant. Where it does add value is in the preparation: reconciling reports, checking invoices against purchase orders, and building the list of what is missing before the close. This is not tax advice.

Is it a good idea to use it to screen resumes?

For summarizing, yes; for rejecting, no. The sensible approach is to ask for a summary of each application against objective requirements and to have it flag what it cannot verify, leaving the selection to a person. It is also worth stripping from the files any data that is not relevant to the role, because that reduces the risk of bias and of unnecessary exposure of personal data.

What about personal data in Mexico and Paraguay?

It is governed by each country's data protection regulations, and this is not legal advice. The practical rule you can apply today is minimization: work only with the information needed for the task and anonymize the rest. For the Paraguayan case we have a dedicated article on Law 7593.

Do I need to integrate it with the ERP or the CRM from day one?

No. Most of the 42 cases work by copying and pasting or uploading a file. Integrations make sense once the use case is established and the bottleneck becomes moving data around. There are native connectors to the usual tools and custom MCP connectors for the rest, which on Team and Enterprise the administrator authorizes for the whole organization.

What do I do if the team does not use it?

Almost always it is because the case chosen was not a real pain or does not happen every week. Change the case before you change the tool, and start with the task the team hates most: that is where adoption happens on its own. The second most common cause is that nobody owns keeping the base material up to date.

What is the most expensive mistake people make at the start?

Letting a figure that nobody verified leave the company. You avoid it with two written rules: that the instruction requires flagging gaps instead of filling them, and that a person reviews everything addressed to a customer, an employee or an authority. Neither one costs time; both prevent expensive trouble.

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