Contact person: Business Client

Phone:Show

Email:Show

Location: Mentakab, Malaysia

Budget: Recommended by industry experts

Time to start: As soon as possible

Project description:
"Project Title
Fix GoAffPro + PayPal Integration for Custom Independent Lesson Website (Non-Shopify, PHP Only)

Project Overview
We are Smart Speak English School, an independent online education platform offering live English lessons worldwide.

Our website is custom-built in PHP and JavaScript (not Shopify, WooCommerce, or Wix) and uses PayPal for all payments.
We already have a GoAffPro Pro account connected: [login to view URL]

Our affiliate tracking currently fails after PayPal checkout. We require a developer who has previously integrated GoAffPro Pro into a custom PHP website to complete and correct the integration.

If you have never used GoAffPro Pro on a custom PHP website, do not apply.
Shopify or WooCommerce GoAffPro experience alone does not qualify.

Current Situation

GoAffPro Pro account active

Referral parameter (?ref=) already implemented

PayPal Smart Buttons already working

Tracking breaks after PayPal checkout

GoAffPro conversions are not being recorded

Trial lessons cost $3 and must not generate commission

Commissions apply only after verified payment for full packages (1-, 3-, or 6-month plans)

Required Work
We need an experienced developer to:

Audit and correct GoAffPro + PayPal REST integration

Implement proper server-side PayPal capture and GoAffPro postback

Ensure the following flow functions correctly:
Affiliate link → referral stored → payment via PayPal → server verification → GoAffPro conversion recorded

Exclude the $3 trial from triggering any affiliate commission

Ensure referral cookie tracking for 60 days, so affiliates are credited even if the customer returns and buys later

Provide clear documentation and code comments when completed

This task requires prior experience. It is not suitable for developers who wish to learn GoAffPro on this project.

Technical Environment

Custom PHP + JavaScript platform

PayPal REST API (Smart Buttons + server-side verification)

GoAffPro Pro merchant API / postback configuration

No CMS, plugin, or e-commerce framework involved

Objective
To have a reliable affiliate system that:

Correctly tracks referrals

Credits affiliates only after confirmed PayPal payment

Never credits trial transactions

Operates consistently without manual intervention

Access Provided

Temporary GoAffPro access

PayPal sandbox credentials

Product list (six paid packages and one trial product)

Communication with our internal developer for testing support

Application Requirements
You must confirm all of the following to be considered:

You have integrated GoAffPro Pro on a custom PHP website before.
Shopify/WooCommerce experience alone does not count.

You have implemented PayPal REST API server-side capture.

Briefly explain how you will ensure:
Affiliate click → cookie → PayPal verification → GoAffPro conversion

Provide proof of GoAffPro PHP integration experience
(code sample, screenshot, or link)

If you cannot meet these requirements, do not apply.

Timeline
Immediate start. We will begin as soon as a qualified developer is verified.

Screening Questions

Describe your GoAffPro-PHP integration experience.

Provide proof (code, screenshot, or link).

Have you implemented PayPal REST server-side capture before? Yes/No

Explain this flow in your own words:
Affiliate visit → purchase → verified payment → GoAffPro credited" (client-provided description)