IF you are Shopify store editor or developer. You need to access the admin dashboard of your client store.
Here is the short instruction to submit the permission and how to confirm your ability.
(This is for my future reference, but I also prefer to help someone who just jumped into Shopify world.)
Step 1 – find the Store Name and URL
Visit the existing store
> Right click on the page
> View page source
> Search the word “myshopify”
> Shopify.shop = “zomokxxxxx.myshopify.com”. <- grap the name
Step 2 – Submit the access request
> Click Add store
> Check managed store
> Enter Store URL ( zomokxxxxx )
> Select the Permissions (may need Full access)
> Confirm your page whether request has submitted correctly.
> Customer needs to approve it? (store owner)
> Access the store dashboard
> Settings > Users and permissions
> Collaborators > Click “Review request”
> Click “Accept request” to accept it
Step 3 – Confirm whether you have been approved
> Access Shopify Partner dashboard
> Stores
Click “Log in” and confirm the accessbility
More information
How to getting started Theme Kit & Connecting it with Shopify Store
https://laelgia.com/getting-started-with-theme-kit-connecting-theme-kit-with-the-shopify-store/
SuperDaddy Kids Video
https://www.youtube.com/channel/UCUoQPsnCWswberT4oAd1_AA