Hello Jan,
I have exactly the same problem, I test all Paypal configurations with the Sandbox and the status does not change, it remains in pending, cons I have an error message in the system log, despite the transaction happened without a problem.
Can this serve you?
Payment - PayPal Standard - ERROR
https://www.misso-shop.com/index.php?
option=com_phocacart&view=response&task=response.paymentnotify&type=paypal_standard&pid=2&tmpl=component
Order Id: 27
Txn Id: 4M571896D29697302
Message: Total amount does not match
Total amount in eshop: 47.25919
Total amount on PayPal: 47.26
Report: --------------------------------------------------------------------------------
[08/05/2019 1:47 PM] -
https://www.sandbox.paypal.com/cgi-bin/webscr (curl)
--------------------------------------------------------------------------------
HTTP/1.1 100 Continue
HTTP/1.1 200 OK
Date: Mon, 05 Aug 2019 13:47:19 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Set-Cookie: c9MWDuvPtT9GIMyPc3jwol1VSlO=hlpZESZ-o65F40ILSn0W4Qb9E-V4PjKZG2tbHL8029g6bOK7aF0rvODig16QaXSJrwT2vLjU_mPsjpntse9oJNR-x0FWWKcqADBmYlAOWcRiwet5cg0CBSAS028eAstDLIVJKccOWJryRYsvov9uA9rleGvaMNrnePykFK4RLPzvqB3EvyEa8JNbWt6xgC6QsFxsE_bJcwCrpESKn0BfzSVmqKT93hekrIgg5rf1vvneuW5tye7oXkhaO-6Cwh6Hfk72gjj37FQN3oPUoN6TW2WtW90fpzjZUmPPP4KqzZ6ynJaJbgjT6u7ad4n8RrkKqlsHjIIsgfH7lVznKjFEk5n6nhTQ0wjw0R-QNMJJmkIE1L8bsYFL2EuyWGo09M0KB30bucEOu4BeYBNGEVrxmN7L8nGHbPe1BEl9D0; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: cookie_check=yes; expires=Thu, 02-Aug-2029 13:47:20 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: navcmd=_notify-validate; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: navlns=0.0; expires=Wed, 04-Aug-2021 13:47:20 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: Apache=10.72.108.11.1565012839798350; path=/; expires=Wed, 28-Jul-49 13:47:19 GMT
Vary: Accept-Encoding,User-Agent
Connection: close
HTTP_X_PP_AZ_LOCATOR: sandbox.slc
Paypal-Debug-Id: aa5e3e4ebc2af
Set-Cookie: X-PP-SILOVER=name%3DSANDBOX3.WEB.1%26silo_version%3D1880%26app%3Dappdispatcher%26TIME%3D1731414109%26HTTP_X_PP_AZ_LOCATOR%3Dsandbox.slc; Expires=Mon, 05 Aug 2019 14:17:21 GMT; domain=.paypal.com; path=/; Secure; HttpOnly
Set-Cookie: X-PP-SILOVER=; Expires=Thu, 01 Jan 1970 00:00:01 GMT
Content-Type: text/html; charset=UTF-8
Strict-Transport-Security: max-age=63072000
VERIFIED
--------------------------------------------------------------------------------
mc_gross 47.26
invoice FC201900027
protection_eligibility Eligible
address_status confirmed
item_number1
payer_id 3XZJKSJP37XGC
address_street saly carrefour
payment_date 06:47:12 Aug 05, 2019 PDT
payment_status Pending
charset windows-1252
address_zip 23002
first_name test
address_country_code US
address_name test buyer
notify_version 3.9
custom 27
payer_status verified
business
misso-shop-facilitator@outlook.com
address_country United States
num_cart_items 1
address_city Saly
verify_sign AN5dvMzgbTsBV6grkY.xVn8oo9MNABt.kqOgLj1e-NxAobSsULNgEpRK
payer_email
misso-shop-buyer@outlook.com
txn_id 4M571896D29697302
payment_type instant
last_name buyer
item_name1 Cheveux 8
address_state
receiver_email
misso-shop-facilitator@outlook.com
shipping_discount 0.00
quantity1 1
insurance_amount 0.00
receiver_id 9PWXWVWYUA3R4
pending_reason multi_currency
txn_type cart
discount 0.00
mc_gross_1 47.26
mc_currency EUR
residence_country US
test_ipn 1
shipping_method Default
transaction_subject
payment_gross
ipn_track_id 41f95227e2823
Regards,
Thierry