[Skip to main content](#vessel-content) # PayPal Express Checkout sandbox issue ## - **[diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile")** - [![diamondheart's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/37744-diamondheart "View diamondheart's Profile") Topic Author - [ Offline](/forum/user/37744-diamondheart) Less More - Posts: 4 - Thank you received: 0 - - 10 years 2 months ago [\#247362](#247362) by [diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile") *[PayPal Express Checkout sandbox issue](/forum/29-payment-methods/885957-paypal-express-checkout-sandbox-issue#247362 "-- HikaShop version -- : HikaShop Essential 2.6.3 -- Joomla version -- : 3.6.2 -- PHP version -- : 5.4.45 -- Error-message(debug-mod must be tuned on) -- : No error message. Screen goes blank! Express checkout works when Sandbox mode is disabled - send the info to PayPal and checkout works. But when I enable Use Sandbox, any attempt to check out with PayPal the screen goes blank, no error messages. Nothing in View Source, either. Any ideas? My clients would really like to be able to TEST the checkout process.")* was created by *[diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile")* -- HikaShop version -- : HikaShop Essential 2.6.3 -- Joomla version -- : 3.6.2 -- PHP version -- : 5.4.45 -- Error-message(debug-mod must be tuned on) -- : No error message. Screen goes blank! Express checkout works when Sandbox mode is disabled - send the info to PayPal and checkout works. But when I enable Use Sandbox, any attempt to check out with PayPal the screen goes blank, no error messages. Nothing in View Source, either. Any ideas? My clients would really like to be able to TEST the checkout process. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI5LXBheW1lbnQtbWV0aG9kcy84ODU5NTctcGF5cGFsLWV4cHJlc3MtY2hlY2tvdXQtc2FuZGJveC1pc3N1ZT90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Jerome](/forum/user/80-jerome "View Jerome's Profile")** - [![Jerome's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar80.png)](/forum/user/80-jerome "View Jerome's Profile") - [ Offline](/forum/user/80-jerome) - HikaShop core developer Less More - Posts: 26394 - Thank you received: 4078 - - [](http://obsi.dev) - 10 years 2 months ago [\#247363](#247363) by [Jerome](/forum/user/80-jerome "View Jerome's Profile") Replied by *[Jerome](/forum/user/80-jerome "View Jerome's Profile")* on topic *[PayPal Express Checkout sandbox issue](/forum/29-payment-methods/885957-paypal-express-checkout-sandbox-issue#247363 "-- HikaShop version -- : HikaShop Essential 2.6.3 -- Joomla version -- : 3.6.2 -- PHP version -- : 5.4.45 -- Error-message(debug-mod must be tuned on) -- : No error message. Screen goes blank! Express checkout works when Sandbox mode is disabled - send the info to PayPal and checkout works. But when I enable Use Sandbox, any attempt to check out with PayPal the screen goes blank, no error messages. Nothing in View Source, either. Any ideas? My clients would really like to be able to TEST the checkout process.")* Hi, A complete blank page can be related to a PHP fatal error. You should take a look in your PHP error log in order to get more details. Regards, --- Jerome - Obsidev.com HikaMarket & HikaSerial developer / HikaShop core dev team. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI5LXBheW1lbnQtbWV0aG9kcy84ODU5NTctcGF5cGFsLWV4cHJlc3MtY2hlY2tvdXQtc2FuZGJveC1pc3N1ZT90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile")** - [![diamondheart's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/37744-diamondheart "View diamondheart's Profile") Topic Author - [ Offline](/forum/user/37744-diamondheart) Less More - Posts: 4 - Thank you received: 0 - - 10 years 2 months ago [\#247724](#247724) by [diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile") Replied by *[diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile")* on topic *[PayPal Express Checkout sandbox issue](/forum/29-payment-methods/885957-paypal-express-checkout-sandbox-issue#247724 "-- HikaShop version -- : HikaShop Essential 2.6.3 -- Joomla version -- : 3.6.2 -- PHP version -- : 5.4.45 -- Error-message(debug-mod must be tuned on) -- : No error message. Screen goes blank! Express checkout works when Sandbox mode is disabled - send the info to PayPal and checkout works. But when I enable Use Sandbox, any attempt to check out with PayPal the screen goes blank, no error messages. Nothing in View Source, either. Any ideas? My clients would really like to be able to TEST the checkout process.")* Nothing in the PHP error log. Nothing in debug output. Any other ideas? Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI5LXBheW1lbnQtbWV0aG9kcy84ODU5NTctcGF5cGFsLWV4cHJlc3MtY2hlY2tvdXQtc2FuZGJveC1pc3N1ZT90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[nicolas](/forum/user/63-nicolas "View nicolas's Profile")** - [![nicolas's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar63.png)](/forum/user/63-nicolas "View nicolas's Profile") - [ Offline](/forum/user/63-nicolas) Less More - Posts: 86290 - Thank you received: 14268 - - 10 years 2 months ago [\#247739](#247739) by [nicolas](/forum/user/63-nicolas "View nicolas's Profile") Replied by *[nicolas](/forum/user/63-nicolas "View nicolas's Profile")* on topic *[PayPal Express Checkout sandbox issue](/forum/29-payment-methods/885957-paypal-express-checkout-sandbox-issue#247739 "-- HikaShop version -- : HikaShop Essential 2.6.3 -- Joomla version -- : 3.6.2 -- PHP version -- : 5.4.45 -- Error-message(debug-mod must be tuned on) -- : No error message. Screen goes blank! Express checkout works when Sandbox mode is disabled - send the info to PayPal and checkout works. But when I enable Use Sandbox, any attempt to check out with PayPal the screen goes blank, no error messages. Nothing in View Source, either. Any ideas? My clients would really like to be able to TEST the checkout process.")* Hi, And if you activate the debug mode of the PayPal Express checkout plugin and do a test again, do you get something in the payment log in the Files section of the HikaShop configuration ? Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI5LXBheW1lbnQtbWV0aG9kcy84ODU5NTctcGF5cGFsLWV4cHJlc3MtY2hlY2tvdXQtc2FuZGJveC1pc3N1ZT90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile")** - [![diamondheart's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/37744-diamondheart "View diamondheart's Profile") Topic Author - [ Offline](/forum/user/37744-diamondheart) Less More - Posts: 4 - Thank you received: 0 - - 10 years 2 months ago [\#247783](#247783) by [diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile") Replied by *[diamondheart](/forum/user/37744-diamondheart "View diamondheart's Profile")* on topic *[PayPal Express Checkout sandbox issue](/forum/29-payment-methods/885957-paypal-express-checkout-sandbox-issue#247783 "-- HikaShop version -- : HikaShop Essential 2.6.3 -- Joomla version -- : 3.6.2 -- PHP version -- : 5.4.45 -- Error-message(debug-mod must be tuned on) -- : No error message. Screen goes blank! Express checkout works when Sandbox mode is disabled - send the info to PayPal and checkout works. But when I enable Use Sandbox, any attempt to check out with PayPal the screen goes blank, no error messages. Nothing in View Source, either. Any ideas? My clients would really like to be able to TEST the checkout process.")* I get this in the payment log file: -- 08.17.16 07:47:57 --[paypalexpress] View on data recieved from Paypal (step 1) :\n\n -- 08.17.16 07:47:57 --[paypalexpress] Array ( [option] => com_hikashop [ctrl] => checkout [task] => notify [notif_payment] => paypalexpress [tmpl] => component [hash] => 1471441670 [setExpressCheckout] => 1 [hikashop_payment_notification_plugin] => 1 ) Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI5LXBheW1lbnQtbWV0aG9kcy84ODU5NTctcGF5cGFsLWV4cHJlc3MtY2hlY2tvdXQtc2FuZGJveC1pc3N1ZT90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Philip](/forum/user/34318-philip "View Philip's Profile")** - [![Philip's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar34318_2015-11-18-2.png)](/forum/user/34318-philip "View Philip's Profile") - [ Offline](/forum/user/34318-philip) Less More - Posts: 4820 - Thank you received: 654 - - 10 years 2 months ago - 10 years 2 months ago [\#247812](#247812) by [Philip](/forum/user/34318-philip "View Philip's Profile") Replied by *[Philip](/forum/user/34318-philip "View Philip's Profile")* on topic *[PayPal Express Checkout sandbox issue](/forum/29-payment-methods/885957-paypal-express-checkout-sandbox-issue#247812 "-- HikaShop version -- : HikaShop Essential 2.6.3 -- Joomla version -- : 3.6.2 -- PHP version -- : 5.4.45 -- Error-message(debug-mod must be tuned on) -- : No error message. Screen goes blank! Express checkout works when Sandbox mode is disabled - send the info to PayPal and checkout works. But when I enable Use Sandbox, any attempt to check out with PayPal the screen goes blank, no error messages. Nothing in View Source, either. Any ideas? My clients would really like to be able to TEST the checkout process.")* Hello, So, you recieve Paypal notification but something went wrong... Can you provide a **Sreenshot** of your payment plugin please ? **Note** : Don't forget to **hide** you Paypal references ! Awaiting news from you. Regards Last edit: 10 years 2 months ago by [Philip](/forum/user/34318-philip "View Philip's Profile"). Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzI5LXBheW1lbnQtbWV0aG9kcy84ODU5NTctcGF5cGFsLWV4cHJlc3MtY2hlY2tvdXQtc2FuZGJveC1pc3N1ZT90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. 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