Title: Woocommerce Question
Last modified: August 21, 2016

---

# Woocommerce Question

 *  [alev](https://wordpress.org/support/users/alev/)
 * (@alev)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/woocommerce-question-4/)
 * This is my first woocommerce cart
    I Install PayPal Pro , configure as a testing
   node ( sandbox) when i send card for processing it do not get process and I am
   getting error message “Payment error: Security header is not valid” It seems 
   that I did every thing as required
 * Any idea why I am getting this error?
 * Thanx

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [WPyogi](https://wordpress.org/support/users/wpyogi/)
 * (@wpyogi)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/woocommerce-question-4/#post-4009561)
 * You can ask WooCommerce here:
 * [http://wordpress.org/support/plugin/woocommerce](http://wordpress.org/support/plugin/woocommerce)
 *  Thread Starter [alev](https://wordpress.org/support/users/alev/)
 * (@alev)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/woocommerce-question-4/#post-4009722)
 * I did and did not got any answers
    So I try here
 *  [WPyogi](https://wordpress.org/support/users/wpyogi/)
 * (@wpyogi)
 * [12 years, 9 months ago](https://wordpress.org/support/topic/woocommerce-question-4/#post-4009743)
 * Duplicate threads are not allowed on these forums and generally closed/deleted.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Woocommerce Question’ is closed to new replies.

 * 3 replies
 * 2 participants
 * Last reply from: [WPyogi](https://wordpress.org/support/users/wpyogi/)
 * Last activity: [12 years, 9 months ago](https://wordpress.org/support/topic/woocommerce-question-4/#post-4009743)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics