update_contact_value_by_associated_account_field_value.js

//Validating account ID
if(account_id != null)
{
	//Getting Account entry
	account_entry = zoho.crm.getRecordById("Accounts",account_id);
	//Validating account response
	if(!account_entry.isEmpty() && account_entry.containKey("Membership_status"))
	{
		//Getting Account Owner entry
		account_value = account_entry.get("Membership_status");
		//Validating account owner response
		if(account_value != null && account_value.trim() != "")
		{
			//Getting Contact Entries
			contact_entries = zoho.crm.getRelatedRecords("Contacts","Accounts",account_id);
			//Validating Contacts response
			if(!contact_entries.isEmpty())
			{
				for each  contact in contact_entries
				{
					//Getting Contact ID
					contact_id = contact.get("id");
					//Validating Contact ID
					if(contact_id != null && contact_id.trim() != "")
					{
						//Putting owner in the update map
						update_map = Map();
						update_map.put("Membership_status",account_value);
						//Updating Contact Entry
						update_contact = zoho.crm.updateRecord("Contacts",contact_id,update_map);
						info update_contact;
						if(!update_contact.isEmpty() && update_contact.containKey("status") && update_contact.get("status") == "error")
						{
							info "Error in updating Contact: " + update_contact;
						}
						else
						{
							info "Contact updated successfully";
						}
					}
					else
					{
						info "Contact ID is empty";
					}
				}
			}
			else
			{
				info "Contacts reponse empty";
			}
		}
		else
		{
			info "Account value is empty";
		}
	}
	else
	{
		info "Invalid Account response";
	}
}
else
{
	info "Invalid Account ID passed";
}