diff --git a/cdoc/NetworkBackend.cpp b/cdoc/NetworkBackend.cpp
index 40163de..068236b 100644
--- a/cdoc/NetworkBackend.cpp
+++ b/cdoc/NetworkBackend.cpp
@@ -539,9 +539,9 @@ rsa_sign(int type, const unsigned char *m, unsigned int m_len, unsigned char *si
 }
 
 libcdoc::result_t
-libcdoc::NetworkBackend::showVerificationCode(unsigned int code)
+libcdoc::NetworkBackend::showFeedback(SIDMIDFeedback& feedback)
 {
-    LOG_INFO("Verification code: {:04d}", code);
+    LOG_INFO("Verification code: {:04d} url: {}", feedback.code, feedback.url);
     return OK;
 }
 
@@ -747,8 +747,9 @@ libcdoc::NetworkBackend::signSID(std::vector<uint8_t>& dst, std::vector<uint8_t>
     // Generate code
     uint8_t b[32];
     SHA256(digest.data(), digest.size(), b);
-    unsigned int code = ((b[30] << 8) | b[31]) % 10000;
-    result = showVerificationCode(code);
+    SIDMIDFeedback fb;
+    fb.code = ((b[30] << 8) | b[31]) % 10000;
+    result = showFeedback(fb);
     if (result != OK) return result;
 
     picojson::object aio1 = {
@@ -834,8 +835,9 @@ libcdoc::NetworkBackend::signMID(std::vector<uint8_t>& dst, std::vector<uint8_t>
     std::string algo_name = algo_names[(int) algo];
 
     // Generate code
-    unsigned int code = (((digest[0] & 0xfc) << 5) | (digest[digest.size() - 1] & 0x7f));
-    result = showVerificationCode(code);
+    SIDMIDFeedback fb;
+    fb.code = (((digest[0] & 0xfc) << 5) | (digest[digest.size() - 1] & 0x7f));
+    result = showFeedback(fb);
     if (result != OK) return result;
 
     // etsi/PNOEE-01234567890
diff --git a/cdoc/NetworkBackend.h b/cdoc/NetworkBackend.h
index 6c08224..69cef94 100644
--- a/cdoc/NetworkBackend.h
+++ b/cdoc/NetworkBackend.h
@@ -119,6 +119,11 @@ struct CDOC_EXPORT NetworkBackend {
         std::string password;
     };
 
+    struct SIDMIDFeedback {
+        int code;
+        std::string url;
+    };
+
     NetworkBackend() = default;
 	virtual ~NetworkBackend() noexcept = default;
     NetworkBackend(const NetworkBackend&) = delete;
@@ -235,13 +240,14 @@ struct CDOC_EXPORT NetworkBackend {
     }
 
     /**
-     * @brief show MID/SID verification code
+     * @brief show MID/SID verification code or QR code
+     * 
+     * Show SID/MID verification code or QR code. The default implementation logs the content with level INFO.
      * 
-     * Show SID/MID verification code. The default implementation logs it with level INFO.
-     * @param code verification code
+     * @param feedback SID/MID feedback data
      * @return error code or OK
      */
-    virtual result_t showVerificationCode(unsigned int code);
+    virtual result_t showFeedback(SIDMIDFeedback& feedback);
 
     /**
      * @brief Sign digest with SmartID authentication key