Messaging System

Enable direct communication between buyers and sellers on your marketplace. Build trust and facilitate transactions.

Quick answer

Buyers and sellers chat directly about a listing, organized into conversations, with email notifications for new messages. Sellers can also send a custom offer - a negotiated price the buyer accepts and pays in one click, right in the thread.

Overview

The messaging system allows buyers and sellers to communicate directly about listings, orders, and services. Messages are organized by conversation and linked to specific listings.

  • Pre-purchase inquiries: Buyers can ask questions before buying
  • Order coordination: Discuss shipping, customization, or scheduling
  • Support: Handle issues and build customer relationships
  • Email notifications: Both parties receive email alerts for new messages

How Messaging Works

Buyer
Views listing
Sends Message
About listing
Seller Notified
Via email
Seller Replies
Conversation continues

Starting a Conversation

Buyers can start a conversation from any listing page:

1

Buyer clicks "Contact Seller" or "Message" on a listing

2

They type their message and send it

3

A conversation is created, linked to that listing

4

The seller receives an email notification

Message Interface

Search...

John D.

Pottery Bowl

2

Sarah M.

Camera Lens

Pottery Bowl

Conversation with John D.

Is this bowl microwave safe?

Yes, completely microwave and dishwasher safe!

Interface Features

  • Conversation list: All conversations organized by recency
  • Unread badges: See how many unread messages per conversation
  • Listing context: Each conversation shows the related listing
  • Search: Find conversations by name or listing
  • Real-time updates: Messages appear instantly

Custom Offers in Chat

Sellers can negotiate a price in the conversation and send a custom offer - a payable price the buyer accepts and pays in one click, right inside the thread. It's ideal for bespoke services, quotes, and special pricing that don't fit a fixed listing price.

Could you do 5,000 words by Friday?

Custom offer

Translation - 5,000 words EN→FR

$120.00

Listing price: $45.00

The seller sends the offer; the buyer taps Accept & Pay to check out.

A paid offer becomes a normal order with the usual payout, receipts, and emails.

Learn more about Custom Offers

Email Notifications

Both buyers and sellers receive email notifications for new messages:

Seller Notifications

When a buyer sends a message, the seller receives an email with:

  • Sender name
  • Message preview
  • Link to reply

Buyer Notifications

When a seller replies, the buyer receives an email with:

  • Seller/store name
  • Message preview
  • Link to view conversation

For Marketplace Owners

As the marketplace owner, you can monitor all conversations via the Moderation panel:

  • View all buyer-seller conversations
  • Search and filter messages
  • Identify policy violations
  • Mediate disputes when needed
  • Auto-flag messages containing words you choose (e.g. payment apps) to catch off-platform attempts

Recommended Message Policies

Response Time Expectations

Set clear expectations for seller response times (e.g., within 24 hours). This helps maintain buyer satisfaction.

Keep Transactions On-Platform

Discourage sharing personal contact info or arranging off-platform payments. This protects both parties and ensures you earn commission. You can also turn on a prohibited-word filter to flag messages mentioning payment apps and remind the sender to keep the sale on the marketplace.

Prohibited Content

Prohibit harassment, spam, hate speech, and sharing of inappropriate content. Include this in your terms of service.

Common Use Cases

Product Inquiries

"Does this come in other colors?" "What are the dimensions?" "Is this compatible with...?"

Custom Orders

"Can you make this in a larger size?" "I'd like to order 50 units, is there a discount?"

Service Bookings

"Are you available next Saturday?" "Do you travel to my area?" "How long does the service take?"

Order Support

"When will my order ship?" "I received the wrong item." "Can I change my shipping address?"

Tips for Sellers

  • Respond promptly to build trust and increase sales
  • Be professional and friendly in all communications
  • Add common Q&A to your listing description to reduce inquiries
  • Check messages regularly or enable email notifications
Messaging System | Prometora Docs