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Common Issues and How to Fix Them

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Okay, real talk – we get some questions more than others. Here are the most common issues people run into and exactly how to fix them:


MOST COMMON ISSUE

Calculator is Assigned But Not Showing on Product Page

The Problem:

You’ve assigned a calculator to a product or category, but when you visit the product page on the frontend – nothing! No calculator appears. This is BY FAR the most common support question we get.

The Solution – Check These TWO Critical Things:

1

Your Calculator MUST Have At Least One Input Field

This catches people all the time! You can’t just create a calculator and assign it – you need to go to the Fields tab and actually add some fields.

How to fix:

  1. Go to your calculator in the admin
  2. Click the “Fields” tab
  3. Add at least one field (text, number, dropdown, whatever you need)
  4. Save the calculator
  5. Refresh your product page – the calculator should now appear!
✅ Calculator with 1+ fields = Shows on frontend
❌ Calculator with 0 fields = Hidden (won't display)

2

Your WooCommerce Product MUST Have a Price Set

Here’s something super important that trips people up: WooCommerce requires a base price to be set, even if your calculator is going to replace it. Just put ANY number in there – $1, $10, $100, whatever. The calculator will replace this price once the customer configures their options.

How to fix:

  1. Go to your WooCommerce product edit page
  2. Scroll to the “Product Data” section
  3. Click the “General” tab
  4. In the “Regular price” field, enter ANY number (e.g., 10)
  5. Save/Update the product
  6. The calculator will now work and replace this base price with the calculated price!
Why does this matter?

WooCommerce needs a base price to function properly. Think of it as a placeholder. Your calculator will dynamically replace this price based on the customer’s selections, but WooCommerce requires SOMETHING to be there initially.

✅ Product with price ($10) + Calculator = Calculator works, replaces price
❌ Product with NO price + Calculator = Calculator won't display

TL;DR – Quick Checklist:

Calculator not showing? Check these TWO things:

  • ☑️ Does the calculator have at least 1 field added?
  • ☑️ Does the WooCommerce product have a price set (any number)?

If BOTH are yes, your calculator should display. If it still doesn’t, check the other issues below.

The Problem: Calculator displays fine, customer makes selections, but the price stays the same.

The Solution:

  • Check your Formula tab – did you actually set up the pricing logic?
  • Make sure “Enable Live Calculation” is turned ON in Settings > Calculation tab
  • If using custom formula, verify the variable names match your field keys exactly
  • Check browser console for JavaScript errors (F12 > Console tab)

The Problem: Calculator appears but looks weird, overlapping text, wrong colors, etc.

The Solution:

  • Your theme might have conflicting CSS. Try changing your theme temporarily to test.
  • Clear all caches (WordPress cache, browser cache, CDN cache)
  • Check if you have any CSS minification plugins that might be breaking things
  • Go to Settings > Design tab and adjust colors to match your theme better

The Problem: More than one calculator appears on the same product page.

The Solution:

  • You probably have both a Product assignment AND a Category assignment for the same product
  • Use the Priority setting in the Settings tab to control which calculator takes precedence
  • Or remove one of the assignments so only one calculator is assigned
  • Higher Priority number = that calculator shows (1-100, default is 1)

The Problem: Calculator shows correct price, but when added to cart, wrong price appears.

The Solution:

  • Check if you have any other pricing plugins that might be conflicting
  • Make sure the product has a base price set (see Issue #1 above)
  • Disable other WooCommerce extensions temporarily to test for conflicts
  • Check if your theme has custom cart/checkout modifications

The Problem: Customer tries to upload a file but it fails or nothing happens.

The Solution:

  • Check your server’s upload_max_filesize setting (usually in php.ini)
  • Verify the WordPress uploads folder has write permissions
  • Check if you have security plugins blocking uploads
  • Test with a smaller file first to rule out file size issues

The Problem: Calculator works perfectly on desktop but doesn’t show up on mobile devices.

The Solution:

  • Check if your theme hides certain elements on mobile
  • Test on different mobile browsers (Chrome, Safari, Firefox)
  • Clear mobile browser cache
  • Use Chrome DevTools mobile emulator to debug (F12 > Toggle Device Toolbar)
  • Look in browser console for errors on mobile

The Problem: You change colors or settings, click save, but changes don’t stick.

The Solution:

  • Check browser console for AJAX errors (F12 > Console)
  • Clear all caches (WordPress, browser, server)
  • Try a different browser to rule out browser-specific issues
  • Disable other plugins temporarily to check for conflicts
  • Check if you have proper permissions (need admin or calculator management capability)

Still Stuck? 🤔

If you’ve tried everything above and your calculator still isn’t working:

  • Double-check you went through the TWO critical requirements at the top (fields + price)
  • Make sure calculator Status is set to “Active” in the Settings tab
  • Verify WooCommerce is installed and active
  • Test with a default WordPress theme (like Twenty Twenty-Four) to rule out theme conflicts
  • Check your WordPress debug.log file for PHP errors