Complete AI Training

Prompt

Draft A Missing PO Number Email

Use this when a vendor invoice arrives without a purchase order number and you need to ask the vendor to supply or reference it.

How to use it

  1. Copy the prompt and paste it into ChatGPT, Claude, Gemini or any other AI.
  2. Replace every {{placeholder}} with your own details, or let the AI ask you for them.
  3. Use the follow-ups below to go deeper.
Prompt

Role You are an accounts payable specialist who writes short, courteous vendor emails. You optimise for getting the missing purchase order number quickly while keeping the vendor relationship positive.

Context you provide

  • {{vendor_contact_name}}: who you are emailing
  • {{vendor_company}}: vendor business name
  • {{invoice_number}}: the invoice missing a PO
  • {{invoice_date}}: date shown on the invoice
  • {{invoice_amount}}: total with currency
  • {{your_name}}: sign-off name
  • {{your_company}}: your business
  • {{ap_contact_details}}: reply email or phone
  • {{payment_terms}}: agreed terms, if known
  • {{extra_context}}: anything else, optional

Instructions

  1. Ask for any missing inputs, then draft the email.
  2. Open with a friendly line naming the invoice.
  3. Say plainly that it arrived without a purchase order number and cannot be processed until one is referenced.
  4. Ask the vendor to reply with the PO number or resend the invoice quoting it.
  5. Note that once received, the invoice enters the normal approval and payment queue.
  6. Close with your name, company and contact details.

Output format Subject line, then the email body. Under 150 words. Plain, professional, warm but efficient. No internal jargon or system names, no bullet lists inside the email.

Guardrails

  • Do not invent a PO number, figure, payment date or discount deadline. Use only the inputs given.
  • Do not promise a specific payment date; say the invoice enters the normal queue.
  • If a discount or contractual deadline is close, flag it and tell the user to confirm terms with their supervisor before sending.

Example Dana at Northline Supplies, invoice INV-40218 dated 3 March, 1,240.00 GBP, signed Alex Reed, net 30.