Requirements & Installation

Requirements

Before installing, ensure the following are in place:

Requirement	Details
ERPNext Version	Version 14 or Version 15 (recommended)
Frappe Framework	Compatible version matching ERPNext
Bench	Installed and configured on your server
Tevin Middleware License	Purchase from tevin.eu
API Server Address	Provided by Tevin on purchase (sandbox + production)
Sender ID	Provided by Tevin as part of API credentials
KRA PIN	Your business must be VAT-registered with KRA
Internet Access	The ERPNext server must have outbound HTTPS access to Tevin's API

Obtaining the Tevin Middleware

The Type-C Middleware for Accounting is a commercial product sold by Tevin. It acts as the certified bridge between your accounting software and KRA's TIMS infrastructure.

Tevin Type-C Middleware for Accounting

Visit https://tevin.eu/type-c-middleware/
Purchase the middleware licence appropriate for your business size
Tevin will provision:

A sandbox API server URL (for testing)
A production API server URL (for live operations)
A Sender ID unique to your account

Keep these credentials secure — they are your authentication to KRA via Tevin.

Installation

Self-Hosted / Manual

Follow these steps on a server where Frappe bench is already set up and ERPNext is installed.

Step 1: Install Frappe Bench (if not already done)

# Follow the official Frappe bench installation guide
# https://github.com/frappe/bench
pip install frappe-bench
bench init frappe-bench --frappe-branch version-15
cd frappe-bench

Step 2: Install ERPNext (if not already done)

bench get-app --branch version-15 erpnext
bench new-site your-site-name.local
bench --site your-site-name.local install-app erpnext

Refer to the ERPNext installation guide for a complete walkthrough.

Step 3: Add the TIMS Tevin Type-C App to Bench

bench get-app --branch {branch-name} https://github.com/navariltd/TIMS-Tevin-Type-C-Integration.git

Replace {branch-name} with the correct branch for your ERPNext version. Check the repository for available branches (e.g., version-15, version-14).

Example (ERPNext v15):

bench get-app --branch version-15 https://github.com/navariltd/TIMS-Tevin-Type-C-Integration.git

Step 4: Install the App on Your Site

bench --site {sitename} install-app tims_tevic_typec_integration

Replace {sitename} with your actual site name.

Step 5: Run Migrations

bench --site {sitename} migrate

Step 6: Restart Bench

bench restart

Verifying Installation

After restarting, log in to ERPNext and search for "TIMS Settings" in the search bar. If the doctype appears, the app has been installed successfully.

Frappe Cloud

If you are hosting on Frappe Cloud, the process is simpler and does not require any server management.

Sign up at frappecloud.com if you haven't already
Create a new Bench — select Frappe Version 15 or above
Create a new Site on that bench
During site creation, in the Apps to Install section, select:

ERPNext
TIMS Tevin Type-C Integration

Complete the setup — the site will be ready within a few minutes with the app pre-installed

For enterprise deployments or custom configurations on Frappe Cloud, contact Navari for implementation support.

TIMS Tevin Type-C Integration