You have defined some options in your ZOHO CRM, such as Lead Source, Industry... Now on your form you want some fields have the same options as ZOHO CRM fields. How to do them? It would be annoyed if you add options to form fields manually and also easy to cause errors.
Here introduce the simplest and quickest way to do it.
Step 1, Let's suppose you have checkbox field and dropdown field added in your form.
Remember to set a valid ID to the fields.
Step 2, Let's suppose you have prepared the fields options you have in your ZOHO CRM.
Industry field and its options:
Lead Source field and its options:
Step 3, navigate to Zoho CRM tab and select Module --> field from ZOHO to your form field on "Populating From Zoho" section.
Remember to save your choice.
Step 4, now you'll see the checkbox field and dropdown field have been populated with ZOHO field options when open your form.
What need I to do if I changed options in my ZOHO CRM?
Just refresh module data in the setting page of Contact Form 7 to ZOHO.