Create script for automated web form filling from excel spreadsheet

I'm about to import 5000 contacts into a CRM system. After the import, I need to add various products to each contact (which I couldn't do during the initial contact import). If this was to be done manually, someone would have to: 1) Search for the contact 2) Select the contact (which opens up the contact page for that record) 3) Select the products section 4) Select the product to link the product to that contact 5) Update the contact Repeat steps 1 to 5 for the next contact The CRM that I want to use doesn't allow me to do this using their import tool so I would need a web form filling macro of some sort. The CRM tool is Zoho CRM. I have an Excel spreadsheet with the contacts (each contact's unique ID is the contact's email address) and each product will have an ID that is unique to the product. I would need to run this initially for the 5000 records then I will need to do this weekly for about 50-100 records so I want to be quoted for the creation of the script that I can run myself after this project is finished.