CRM Data Entry & Mailchimp Audience Update (Approx. 305 Entries)

I’m looking for a reliable and detail‑oriented admin/data‑entry professional to update our existing Mailchimp audience with approximately 305 new CRM records. The data will be supplied in a Google Sheet and needs to be verified and entered into Mailchimp with complete accuracy.
Project Overview:
You will add new customer entries to an already‑established Mailchimp audience. Each record must be checked online first (as a quality safeguard) and then entered into Mailchimp with precise tagging. The work is simple but time‑intensive, and accuracy is critical, especially because we use a detailed segmentation system for targeted communication.
Data to Be Entered Includes:

Company name
Contact name (where available)
Email address
Postal address
Contact number (some entries will include these, others will not)
Tags (most important field)

Tagging Requirements:
We operate a relatively intricate tagging system designed to ensure the right customers receive the right communications. You will be given full tag instructions. Tags must be added exactly as specified—precision is essential.
What You’ll Receive:

Access to the Google Sheet with ~305 CRM entries
A tagging guide outlining all rules
Additional notes or references if needed
Clear instructions and ongoing support

What’s Needed From You:

Excellent attention to detail
Confidence using Mailchimp (or similar CRM/email marketing tools)
Ability to apply structured tagging/segmentation rules
Willingness to cross‑verify entries online before adding them
Reliability and clear communication throughout

Summary:
This project involves adding around 305 new entries to an existing Mailchimp audience. Some entries may not contain every data field (e.g., missing phone numbers), so careful handling of incomplete data is required. The overall task is straightforward but requires patience, consistency, and accuracy—especially with tags.