nestitepsu

a bit late, but here is the answer to this problem: "Signature Verification Failed Signature Verification Failed indicates a problem in the payment notification anti-spoof verification. When a payment notification is received from PayPal, WHMCS makes an API request to PayPal confirming that the notification originated from PayPal. Seeing this typically indicates that a subscription renewal payment was made through a different integration app from the one currently linked to your WHMCS installation. This situation can arise if Unlink PayPal Account on the module configuration was used after the PayPal subscription was originally created. Once the unlink function is used, the subscription payments that pre-date it can no longer be recorded in WHMCS. Such subscriptions will need to be cancelled via the PayPal website. Clients can then create a new subscription under the current integration app linked to your WHMCS installation when their next invoice is due." source: PayPal Checkout - WHMCS Documentation

Hi @Paweł Bis "This feature will be included in Lagom 2.0, which will be released 18th of October 2021." but Today I see only release of Lagom v1.6.1 with improvements and compatibility with whmcs v8.3.0. When will version 2.0 be released?

Hi, when will this magnificent feature be available? @Paweł Bis