diff --git a/api/__pycache__/settings.cpython-313.pyc b/api/__pycache__/settings.cpython-313.pyc
index 5093dd99..6c4febb9 100644
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diff --git a/app/__pycache__/payment.cpython-313.pyc b/app/__pycache__/payment.cpython-313.pyc
index 563ece8a..e3cf370c 100644
Binary files a/app/__pycache__/payment.cpython-313.pyc and b/app/__pycache__/payment.cpython-313.pyc differ
diff --git a/app/__pycache__/workflow_actions.cpython-313.pyc b/app/__pycache__/workflow_actions.cpython-313.pyc
index c88ebb8c..58cc66a9 100644
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diff --git a/app/__pycache__/workflow_utils.cpython-313.pyc b/app/__pycache__/workflow_utils.cpython-313.pyc
index 1166deac..14eea1e2 100644
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diff --git a/app/payment.py b/app/payment.py
index 5699991a..a8728d6c 100644
--- a/app/payment.py
+++ b/app/payment.py
@@ -27,6 +27,7 @@ def account_entry_api(code, amount, content, type, category, userid, ref=None, p
         entry_type = Entry_Type.objects.get(code=type)
         entry_category = Entry_Category.objects.get(id=category)
         system_date = date if date else datetime.now().strftime("%Y-%m-%d")
+        amount = float(amount)
 
         with transaction.atomic():
             account = Internal_Account.objects.select_for_update().get(code=code)
diff --git a/app/workflow_actions.py b/app/workflow_actions.py
index ff6476ad..58b87a86 100644
--- a/app/workflow_actions.py
+++ b/app/workflow_actions.py
@@ -123,6 +123,7 @@ def api_call_action(params, context):
         body = resolve_value(raw_body, context)
 
     print(f"      [API_CALL] {method} {url}")
+    print(f"      [API_CALL] Resolved Body: {body}")
 
     # Thực hiện request
     if method == "POST":
diff --git a/app/workflow_utils.py b/app/workflow_utils.py
index ad4a2ff8..fa66c7ed 100644
--- a/app/workflow_utils.py
+++ b/app/workflow_utils.py
@@ -45,8 +45,8 @@ def resolve_value(expr, context):
         arg2_val = resolve_value(func_match.group(3).strip(), context)
 
         try:
-            num1 = float(arg1_val) if arg1_val is not None else 0
-            num2 = float(arg2_val) if arg2_val is not None else 0
+            num1 = float(arg1_val or 0)
+            num2 = float(arg2_val or 0)
             if func_name == "add":
                 return num1 + num2
             if func_name == "sub":