Great question—let’s break this down clearly since you’re working with a nonprofit on a tight (non-existent!) IT budget.

First, the hard truth: You cannot directly embed custom JavaScript (like PayPal’s Express Checkout JS) into Google Forms. Google Forms is a closed, managed tool with strict security restrictions and no support for injecting external scripts or custom code. Its interface only allows basic elements like text fields, dropdowns, and simple hyperlinks—no way to add script tags or interactive payment buttons directly in the form itself.

But don’t worry—there are free, budget-friendly workarounds that get you close to the experience you want:

1. Optimize the Existing PayPal Link Workflow #

You mentioned you can already add a PayPal link to Google Forms—let’s make this flow smoother for users:

• Use Google Forms’ section logic to hide the payment link until users complete all required fields. This ensures they can’t skip filling out the form before reaching the payment step.
• Generate a custom PayPal link (via your PayPal account’s button creator) that pre-fills the payment amount, donation purpose, or item name. This eliminates the need for users to manually enter details, reducing friction.
• Add clear, actionable text to the link, like “Click here to complete your $25 donation” instead of a generic “Pay Now” button.

2. Auto-Send Payment Links via Google Apps Script (Free) #

Since Google Forms automatically syncs responses to Google Sheets, you can use Google’s free Apps Script tool to trigger a payment link email every time someone submits the form. Here’s a simple script to get you started:

function onFormSubmit(e) {
  // Get respondent's email (enable "Collect email addresses" in your form settings first)
  const respondentEmail = e.response.getRespondentEmail();
  if (!respondentEmail) return;

  // Customize this with your PayPal link and payment details
  const paymentAmount = "25"; // You can pull this from a form field too, e.g., e.namedValues['Donation Amount'][0]
  const paypalPaymentLink = "https://www.paypal.com/donate?hosted_button_id=YOUR_CUSTOM_BUTTON_ID";

  // Send the email
  MailApp.sendEmail({
    to: respondentEmail,
    subject: "Complete Your Donation Payment",
    body: `Thank you for submitting your information! To finalize your $${paymentAmount} donation, please click the link below:\n\n${paypalPaymentLink}`,
  });
}

Setup Steps: #

1. Open the Google Sheet linked to your form.
2. Go to Extensions > Apps Script to open the script editor.
3. Paste the code above, replace YOUR_CUSTOM_BUTTON_ID with your PayPal button’s ID, and adjust the text/amount as needed.
4. Set up a trigger: Click the clock icon (Triggers) > Add Trigger > Choose onFormSubmit as the function, select "From form" as the event source, and "On form submit" as the event type.

3. Use Free Automation Tools (No Code) #

If coding isn’t your thing, free automation tools (with limited free tiers that work for small nonprofits) can connect Google Forms to PayPal. These tools will automatically send a payment link or create a payment request whenever a form is submitted—no scripts required.

Key Takeaway #

While direct JS integration isn’t possible with Google Forms, these free workarounds let you create a seamless flow from form submission to payment, which is perfect for a nonprofit with no IT budget.

内容的提问来源于stack exchange，提问作者user1330219