To invite a partner to join your Shopify store, you can easily follow these step-by-step instructions: Ask your partner to open their Shopify Partner Dashboard and locate the 'Stores' section. Click on 'Add Store' and choose the option for a 'Managed Store.' Provide the Store URL and select the specific permissions you wish to grant them. Optionally, you can include a personalized message, and then click on 'Save.' The collaboration request will be promptly sent. To accept the collaborator's request, navigate to your Shopify Admin Dashboard. Look for the pending request and click on 'Review Request' to manage the collaborator's permissions. Once you have reviewed and adjusted the permissions as needed, click on 'Accept Request' and then confirm your decision.