I  to intergrate zoho CRM with zoho campaigns https://help.zoho.com/portal/en/kb/crm/integrations/zoho/zoho-campaigns/articles/zoho-campaigns-crm-integration#Configuring_the_integration_and_setting_up_sync

but in step1, when i click to zoho campaigns, i meet problems " Permission denied. Only users of Zoho Campaigns from your org can perform this operation."

How to solve the problems

Thank in advance!