# Troubleshooting

In this section you will learn how to solve the following issues:

| [Why my Shopify discount code doesn't work?](https://docs.personaldiscount.io/personal-discount-for-shopify/troubleshooting/why-my-shopify-discount-code-doesnt-work)                                                                                                                         |
| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [My Shopify customer's discount code was applied, but it shouldn't](https://docs.personaldiscount.io/personal-discount-for-shopify/troubleshooting/my-shopify-customers-discount-code-was-applied-but-it-shouldnt)                                                                            |
| [Customer eligibility is not respected](https://docs.personaldiscount.io/personal-discount-for-shopify/troubleshooting/customer-eligibility-is-not-respected)                                                                                                                                 |
| [Some of my subscribers in Klaviyo don't have a discount code generated in Personal Discount](https://docs.personaldiscount.io/personal-discount-for-shopify/troubleshooting/some-of-my-subscribers-in-klaviyo-dont-have-a-discount-code-generated-in-personal-discount)                      |
| [Mailchimp is not sending emails with discount codes](https://docs.personaldiscount.io/personal-discount-for-shopify/troubleshooting/mailchimp-is-not-sending-emails-with-discount-codes)                                                                                                     |
| [Discount codes are not appearing in the emails sent by Mailchimp](https://docs.personaldiscount.io/personal-discount-for-shopify/troubleshooting/discount-codes-are-not-appearing-in-the-emails-sent-by-mailchimp)                                                                           |
| [I have received << Test discount code >> instead of a real discount code in the Mailchimp test message](https://docs.personaldiscount.io/personal-discount-for-shopify/troubleshooting/i-have-received-less-than-less-than-test-discount-code-greater-than-greater-than-instead-of-real-dis) |