APPLY_COUPON coupon mutation returns different error message when the valid coupon code case changes

[brianpereradap]

APPLY_COUPON coupon mutation returns different error message when the valid coupon code case changes.

• If the coupon code is lower case it returns "Coupon "code" does not exist!"
• If the coupon code has a capital letter is returns "No coupon found with the code provided"

To Reproduce Steps to reproduce the behavior:

1. Use the APPLY_COUPON to submit an invalid coupon code that contains all lower case letters
2. Check the response error message
3. Use the APPLY_COUPON to submit an invalid coupon code that contains one or more capital letters
4. Check the response error message

Expected behavior Regardless of the case, the same error message would be returned

Screenshots

Desktop (please complete the following information):

• OS: Windows
• Browser Chrome
• Version Version 97.0.4692.99

Plugin Versions

• **WooGraphQL Version: Version 0.10.6
• **WPGraphQL Version: Version 1.6.11
• **WordPress Version: 5.9
• **WooCommerce Version: Version 6.1.0

[kidunot89]

@brianpereradap I'm not seeing the problem. The error messages returned are mostly just forward from WooCommerce.

Are you saying the error message should be identical?

[Kosyarik]

Can someone show an example of the implementation of coupons (applyCoupon) on js. Thanks

[brianpereradap]

@kidunot89 check the following screenshot. The wp-graphql-woocommerce plugin is sending back a hard coded error message as opposed to sending the standard error sent back from woocommerce.

[kidunot89]

@brianpereradap Oh I see. We can make this consistent with WooCommerce somehow 🤔

[brianpereradap]

Can someone show an example of the implementation of coupons (applyCoupon) on js. Thanks

Use the ApplyCoupon mutation to add coupons to the cart session. You just need to pass in a client mutation id and a valid coupon code as inputs for the mutation.

[kidunot89]

@brianpereradap You actually don't need to pass in the clientMutationId at all anymore.