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error_message=Security header is not valid


johnno314159

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Hey everybody.

 

Another newbie (groans).

 

Please excuse my ignorance. We all start out that way.

 

I'm at my Wit's End. No, not the one in Zork, my very own wits.

 

I've been trying to get OSC to work properly all day and I'm getting some problems.

 

While I *believe* I've setup my details correctly in Paypal, (it gave me API username, pwd and signature),

when I click checkout or checkout with paypal, as in yeti2.jpg, attached, it just comes back with no noticeable

result (except the red bar at top right, (why?)).

 

The result shown in the URL box ends with: ?page_id=19&slug=shopping_cart.php&error_message=Security header is not valid

 

A check of my settings in Paypal Express Checkout module (click Test API Credentials) gives this msg:

Fatal error: require() [function.require]: Failed opening required 'includes/application_top.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in

/home/xxxxxx/public_html/wp-content/plugins/WP_online_store/admin/ext/modules/payment/paypal/paypal_express.php on line 14

 

Settings shown in yeti3.jpg.

 

I'm using version 2.3.1 (plugin for WP).

 

Can anyone offer an idea as to what I've done wrong?

 

TIA,

Johnno314159

post-295867-0-17014900-1313389226_thumb.jpg

post-295867-0-77911800-1313389255_thumb.jpg

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  • 1 month later...

Ok.. I know this must be an on going issue. I have read so many therads in here to try to fix the Security Harder not Valid issue I use paypal Express checkout. I have tripled check my settings as far as

 

Seller account

API unser name

API password

API signature

Transaction Server

Live

 

Transaction Method

Sale

 

PayPal Account Optional

True

 

PayPal Instant Update

True

 

PayPal Checkout Image

Static

 

Debug E-Mail Address

 

Payment Zone

Texas

 

Set Order Status

default

 

PayPal Transactions Order Status Level

default

 

Sort order of display.

1

 

cURL Program Location

/usr/bin/curl

 

I still can't get the header error to go away.. what in the H#LL is going on hehe .. would someone help me out ..

 

thanks

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The SECURITY HEADER PROBLEM,

is regarded to the API Credentials that you are using.

If you using paypal through the LIVE or Sanbox option, you have set the correct API Credentials, which are different in each case.

With Live option you have to get the API credentials in your main account.

With Sanbox option, you have to get the credentials inside the "fake" business account that you has created in sanbox.

 

Hope this help..

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