Follow the Official instructions here to create or manage custom fields in Zoho CRM.

You can use these custom fields to Sync the data with Shopify by Skylio - CRM Connector. 

Follow the steps to create custom fields in Zoho CRM.

  • Log in to Zoho Developer Console and click Vertical Solutions
  • In the Vertical CRM page, select the application in which the field has to be added.
  • In the App Details page, click Modules in the left pane.
  • In the Modules page, click the name of the module in which you want to add the custom field.
  • Drag-and-drop the required field type from the New Fields panel and enter a label for the field.
  • Click Save Layout.