You spend hours negotiating pricing, confirming delivery timelines, and aligning vendor terms — only to get stuck drafting a proper approval note that doesn’t cause delays. A clear, professional Sample Letter for Quotation Approval removes this bottleneck and keeps your projects moving on schedule.

Too many teams waste time rewriting approval messages from scratch, or send vague notes that lead to misinterpreted orders, extra charges, or missed deadlines. This guide breaks down when to use each template, what critical details to include, and ready-to-copy letters you can adapt today.

Why A Standard Sample Letter for Quotation Approval Works

Every quotation approval serves one core purpose: formally confirm that you accept the quoted terms, and give the vendor clear authority to proceed. Missing even one small detail here can derail an entire project timeline or create costly billing disputes later.

Before sending any approval, always verify these critical details are included:

  • Exact quotation reference number and date
  • Final agreed total cost (including taxes and fees)
  • Confirmed delivery or completion timeline
  • Any modified terms negotiated after the quote was sent

To make this even clearer, here is how common approval types compare:

Approval Type Turnaround Time Expected Required Formalities
Small Purchase Same day Email confirmation only
Project Contract 1-3 business days Signed digital letter
Bulk Order 48 hours Written approval with purchase order link

Sample Letter for Quotation Approval: Standard Small Business Vendor Order

Subject: Approval of Quotation #QT-7824 for Office Supply Restock

Dear Maria,

Thank you for sending your quotation dated 12th October 2024. We have reviewed the pricing and terms, and formally approve this quotation.

Please proceed with preparing the order as listed. We expect delivery by 19th October as confirmed. Our accounts team will process the 50% deposit by end of day today.

Regards,
Jake Miller
Operations Manager

Sample Letter for Quotation Approval: Partial Acceptance With Changes

Subject: Partial Approval of Quotation #4129 for Website Maintenance

Hi Raj,

We have reviewed your maintenance quotation. We approve all items listed except the premium security add-on, which we will decline at this time.

The revised approved total is $1,120 per month. Please update your schedule and send a revised confirmation by Friday. You may begin work on approved items starting Monday.

Thank you,
Lena Carter
IT Lead

Sample Letter for Quotation Approval: Urgent Last Minute Project

Subject: URGENT: Approval of Quotation #9056 for Event Repairs

Hello Tom,

This email serves as formal approval of your quotation for stage repair works received this morning.

Please commence work immediately. All quoted terms are accepted. A purchase order number PO-2024-1187 has been generated and attached for your records.

Kind regards,
Sophie Reed
Event Coordinator

Sample Letter for Quotation Approval: Internal Request For Manager Sign Off

To: David Okonkwo, Finance Manager

Subject: Request Approval for Printer Repair Quotation

I am submitting quotation #R-3491 from Tech Fix Ltd for approval. The quote covers full servicing and part replacement with 12 months warranty on all work.

Total cost is $425. This repair is required to resume printing for payroll processing this week. Please approve at your earliest convenience.

Submitted by
Priya Mehta
Admin Officer

Sample Letter for Quotation Approval: Bulk Wholesale Order Confirmation

Subject: Formal Approval of Quotation #WH-7761 for 200 Unit Stock Order

Dear Mr Henderson,

We hereby formally approve your quotation dated 8th November 2024 for the bulk order of wireless headphones.

All pricing, shipping terms and 30 day payment window are accepted as quoted. Please share tracking information once dispatched. Accounts will process full payment on receipt of goods.

Sincerely,
Marcus Lee
Purchasing Head

Sample Letter for Quotation Approval: Approval With Agreed Payment Terms

Subject: Approval of Quotation #CN-2204 For Renovation Works

Hi Clara,

Following our call yesterday, we confirm approval of your building renovation quotation.

As agreed, payment will be split as: 30% on commencement, 40% at mid project milestone, 30% on final handover. Please share the project start date by tomorrow.

Thank you,
Anna Brooks
Property Manager

Sample Letter for Quotation Approval: Approval After Removing Extra Services

Subject: Approval of Revised Quotation #5612 For Marketing Services

Hello Mike,

Thank you for sending the revised quotation. We approve this version, with the social media ad management service removed as discussed.

The final approved monthly fee is $890. You may onboard our team for the remaining services starting next week.

Best regards,
Zoe Grant
Marketing Director

Frequently Asked Questions about Sample Letter for Quotation Approval

Do I need to send a formal letter even after verbally approving?

Yes, always send written approval. Verbal agreements are not legally traceable and create risk for disputes. A written letter creates a formal record for both parties.

Can I approve a quotation via text message?

Only for very small, low value purchases under $100. For all business orders, use email or signed letter. This ensures proper record keeping for accounts and audits.

What is the most important detail to include?

Always include the original quotation reference number. This is the only way vendors can match your approval to the correct document in their system.

How long do vendors wait for quotation approval?

Most standard quotations remain valid for 14-30 days. Always check the expiry date printed on the quote before sending your approval.

Do I need to attach the original quotation when approving?

It is good practice to attach or reference the quote. This removes any confusion about exactly which version of the quotation you are approving.

Can I make changes after sending approval?

Only if the vendor agrees in writing. Once you send formal approval, this forms a binding agreement. Always confirm all terms before submitting approval.

Should I send a copy of the approval to my accounts team?

Yes, always CC your finance or accounts department on every quotation approval. This lets them prepare payments and update budget records on time.

Who is authorised to send a quotation approval?

Only team members with delegated budget authority for that purchase value. Always check your internal company approval rules before confirming any quote.

What happens if I approve the wrong quotation?

Contact the vendor immediately by phone and follow up with written email. Most vendors will cancel an approval if work has not yet commenced.

Every successful business runs on clear, formal communication, and quotation approvals are one of the most common, high impact messages you will send. Using standard templates removes guesswork, reduces delays, and protects your team from avoidable mistakes.

Save this guide for your next purchase, and adapt any of the sample letters above to fit your specific scenario. Always double check quotation numbers and totals before hitting send, and keep a saved copy of every approval for your records.