Monnify Payment Gateway for Zoho Books

By Oreoluwa Somuyiwa June, 2025

Accept payments directly in Zoho Books via bank transfers, cards, or USSD using Monnify's secure gateway. Automate invoice reconciliation and reduce manual payment tracking.

This integration requires your Monnify Business Code, API Key, and Contract Code to authenticate transactions.

Follow this guide to install the Monnify plugin, configure credentials, and enable payments in Zoho Books.

By the end of this guide, your Zoho Books invoices will be able to receive payments in real-time using Monnify

Create a Monnify Account

Before you can start integrating to Monnify, you will need to create a Monnify account.

Create Account

Prerequisites

Before you begin, the following are required :

Zoho Books account with admin access

Active Monnify merchant account (Sign up here)

Your Monnify credentials:

Business Code (Unique to your Monnify account)
API Key (From Developer Dashboard)
Contract Code (From Developer Dashboard)

Step 1: Install the Plugin

From Zoho Marketplace

Go to Zoho Marketplace and search for "Monnify for Zoho Books".

Click "Install Now" and select your Zoho Books organization.

Grant these permissions when prompted:

Access to invoices
Ability to add payment buttons
Read/write payment records

Step 2: Configure Monnify Credentials

Connecting to your merchant account

After installation:

In Zoho Books, go to Settings → Online Payments → Payment Gateways
Find Monnify and click "Setup Now"
Enter these Monnify credentials:
Business Code: [Alphanumeric code under your business name]
API Key: MK_PROD_XXXXXXXXXXXXXXXX
Contract Code: 1XXXX2XXXX3XXX
Save configuration

Step 3: Test with Live Transaction

Verification process

Create a test invoice for ₦100 (minimum amount ₦20)
Complete payment using any method
Verify in both:
- Zoho Books → Sales → Invoices
- Monnify Dashboard → Transactions