Template · ZIP · 8 KB
Supplier Bill Check: the practice kit
Try the bill check on fictional documents, then use the editable sheets to record your own supplier check.
A ZIP with 17 files: practice documents, four prompts, an answer key, three blank CSV sheets and two email templates.
The first part is open below. The download adds: keep a record you can use next month.
Free. The link shows here and lands in your inbox. Nothing else.

What's inside
- Start with the instructions in START-HERE.md.
- Practise with an agreement, an approved change, three invoices and a credit note.
- Compare your result with the answer key.
- Use the file register, comparison sheet and query log for your own check.
- Adapt the supplier query and follow-up templates.
Practise before you use your own bills
This kit gives you the files used in the Supplier Bill Check guide. You get a fictional agreement, an approved change, three invoices and a credit note, plus an answer key to check the result.
The first test is simple: give your AI the practice input files and the comparison prompt. Keep the answer key out of the chat. Then compare its result with the answer key yourself. Check whether it used the correct dates and noticed the credit already applied.
The kit accompanies Claude saved my bacon.. It is a set of editable files you can open with ordinary text and spreadsheet tools.
Still to come, in the download
- Keep a record you can use next month
Free. The link shows here and lands in your inbox. Nothing else.
Who's behind it

Matt Hertel. An engineer who has also run the company. Built and sold apps solo. Fractional CTO in startups. Every Sunday, one job start to finish, in No Manual Yet.
Every Sunday, one job start to finish. Read No Manual Yet
It goes with this issue
More to take
- Rethink one process: the helper skill
Work through one chosen process with an AI assistant that asks for the missing facts before it proposes a change.
- Rethink one process
Find the back button in a job you do every week, then redesign that one moment and test the change.
- Why saying "use more AI" doesn't work: the survey, the prompt and what to do next
Next to the doom-and-gloom headlines, "use more AI" sounds like adopt or die. This guide goes with No Manual Yet Issue 11. It gives you an 8-question anonymous survey that asks your team whether they see you leading by example, a prompt that builds it for your own team, and practical pages on what to do with each pattern of answers.
- Check a supplier bill against the agreement
Compare three supplier bills with the agreement, check the evidence and prepare a clear question about any difference.