Stage 3 · Customer service, sales, marketing and information analysis
Editorial proposal for voluntary self-study, not an official enrollment, class schedule or accredited program. Months are relative to your chosen starting point; no attendance requirement or live teacher is announced. All cases and figures are fictional. Keep exercises locally; these pages collect no submissions.
A useful reply acknowledges receipt, separates facts from unknowns and offers a next step. Use the earlier inquiry unit linked below. An inquiry does not authorize indefinite promotions.
Fictional case
Fictional bakery:12 rolls atCOP3,000; stock and delivery pending. Customer asks for tomorrow at8.
Local activity
Calculate subtotal; draft a three-sentence reply; list what a person must review and which permission has not been given.
Products:COP36,000. Example: “Thanks for your inquiry. The product subtotal would beCOP36,000; we will check stock and delivery for that time. Which area is the delivery in?” No confirmed order, included delivery fee or promotional permission.
Keep your draft, corrections and a note explaining what changed. This is local self-review, not an academic pass.
A rate needs a numerator, denominator and period. Inquiry, proposal, order and payment are different events. Record the source and do not mix people with messages.
Fictional case
Fictional week:20 distinct inquiries,15 replies,8 proposals and4 confirmed orders. Payment data is absent.
Local activity
Calculate reply rate per inquiry, orders per inquiry and orders per proposal. Explain what cannot be calculated.
Results can vary with price, availability, season or channel. A descriptive comparison does not prove causation. This activity requires no ad purchase or outreach.
Fictional case
Fictional campaign A:100 visits,10 inquiries. B:80 visits,12 inquiries. No spending, sales or comparable-source data.
Local activity
Calculate inquiries/visits; write two observations and two interpretation limits. Propose additional information to collect with authorization.
A10%; B15%. B has a higher observed rate and more inquiries, but this proves neither profitability nor an AI effect. Costs, sales and comparable conditions are missing. Use minimal aggregate data with a defined purpose.
Keep your draft, corrections and a note explaining what changed. This is local self-review, not an academic pass.
Stage review
Can another person reproduce your calculation and distinguish source facts, unknowns and proposals? Correct any unsupported claim. Preserve fictional identifiers and do not replace them with customer data.
