diff --git a/README.md b/README.md
index e9558bf..0dee91b 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@ Projekt odwzorowuje oficjalne przepływy KSeF i zapewnia spójny model pracy w d
 
 ## 🔄 Kompatybilność
 
-Aktualna kompatybilność: **KSeF API `v2.2.0`** ([api-changelog.md](https://github.com/CIRFMF/ksef-docs/blob/2.2.0/api-changelog.md)).
+Aktualna kompatybilność: **KSeF API `v2.2.1`** ([api-changelog.md](https://github.com/CIRFMF/ksef-docs/blob/2.2.1/api-changelog.md)).
 
 ## 🧭 Spis treści
 
diff --git a/docs/README.md b/docs/README.md
index 328bcc9..08b8cba 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -4,7 +4,7 @@ Dokumentacja opisuje **publiczne API** biblioteki `ksef-client-python` (import:
 
 Opis kontraktu API (OpenAPI) oraz dokumenty procesowe i ograniczenia systemu znajdują się w `ksef-docs/`.
 
-Kompatybilność SDK: **KSeF API `v2.2.0`**.
+Kompatybilność SDK: **KSeF API `v2.2.1`**.
 
 ## Wymagania
 
diff --git a/tests/cli/integration/test_send_batch.py b/tests/cli/integration/test_send_batch.py
index c6511a2..a9fd302 100644
--- a/tests/cli/integration/test_send_batch.py
+++ b/tests/cli/integration/test_send_batch.py
@@ -50,6 +50,39 @@ def _fake_send(**kwargs):
     assert seen["save_upo_overwrite"] is False
 
 
+def test_send_batch_rr_form_code_override(runner, monkeypatch, tmp_path) -> None:
+    seen: dict[str, object] = {}
+
+    def _fake_send(**kwargs):
+        seen.update(kwargs)
+        return {"session_ref": "BATCH-RR"}
+
+    monkeypatch.setattr(send_cmd, "send_batch_invoices", _fake_send)
+    batch_dir = tmp_path / "batch"
+    batch_dir.mkdir()
+
+    result = runner.invoke(
+        app,
+        [
+            "send",
+            "batch",
+            "--dir",
+            str(batch_dir),
+            "--system-code",
+            "FA_RR (1)",
+            "--schema-version",
+            "1-1E",
+            "--form-value",
+            "RR",
+        ],
+    )
+
+    assert result.exit_code == 0
+    assert seen["system_code"] == "FA_RR (1)"
+    assert seen["schema_version"] == "1-1E"
+    assert seen["form_value"] == "RR"
+
+
 def test_send_batch_save_upo_overwrite_flag(runner, monkeypatch, tmp_path) -> None:
     seen: dict[str, object] = {}
 
diff --git a/tests/cli/integration/test_send_online.py b/tests/cli/integration/test_send_online.py
index 8e26051..02e5ed0 100644
--- a/tests/cli/integration/test_send_online.py
+++ b/tests/cli/integration/test_send_online.py
@@ -54,6 +54,40 @@ def _fake_send(**kwargs):
     assert seen["save_upo_overwrite"] is False
 
 
+def test_send_online_rr_form_code_override(runner, monkeypatch, tmp_path) -> None:
+    seen: dict[str, object] = {}
+
+    def _fake_send(**kwargs):
+        seen.update(kwargs)
+        return {"session_ref": "SES-RR", "invoice_ref": "INV-RR"}
+
+    monkeypatch.setattr(send_cmd, "send_online_invoice", _fake_send)
+
+    invoice_path = tmp_path / "rr.xml"
+    invoice_path.write_text("<rr/>", encoding="utf-8")
+
+    result = runner.invoke(
+        app,
+        [
+            "send",
+            "online",
+            "--invoice",
+            str(invoice_path),
+            "--system-code",
+            "FA_RR (1)",
+            "--schema-version",
+            "1-1E",
+            "--form-value",
+            "RR",
+        ],
+    )
+
+    assert result.exit_code == 0
+    assert seen["system_code"] == "FA_RR (1)"
+    assert seen["schema_version"] == "1-1E"
+    assert seen["form_value"] == "RR"
+
+
 def test_send_online_save_upo_overwrite_flag(runner, monkeypatch, tmp_path) -> None:
     seen: dict[str, object] = {}