diff --git a/src/constants.py b/src/constants.py
index fc2cd09..99599bb 100644
--- a/src/constants.py
+++ b/src/constants.py
@@ -10,7 +10,7 @@ class Currency(str, Enum):
     CHF = "CHF"
 
     def __str__(self):
-        return self.value
+        return f"{self.value}"
 
     def __repr__(self):
         return f"Currency.{self.name}"
diff --git a/src/ingest/comdirect.py b/src/ingest/comdirect.py
index 6490df9..783593b 100644
--- a/src/ingest/comdirect.py
+++ b/src/ingest/comdirect.py
@@ -31,12 +31,14 @@ class EXPECT_LINE(Enum):
 type ComdirectExportModel = ComdirectGiro | ComdirectDepot | ComdirectCreditCard
 
 
-SOURCE_COMDIRECT = BANK_ACCOUNTS.get("Comdirect")
+SOURCE_COMDIRECT = BANK_ACCOUNTS.get("comdirect")
 assert isinstance(SOURCE_COMDIRECT, Source)
 
 SOURCE_PATH = SOURCE_COMDIRECT.source_path
 ACCOUNTS = SOURCE_COMDIRECT.accounts
 
+COMDIRECT_ACCOUNT_PARSERS = {a.name: a.model.model_validate for a in ACCOUNTS}
+
 
 def reader_comdirect(path: Path) -> dict[str, list[ComdirectExportModel]]:
     result = {}
@@ -122,11 +124,11 @@ def upsert_comdirect_giro(
 
 def ingest_comdirect(path: Path, account_iban: str, account_currency: str):
     assert SOURCE_COMDIRECT
-    data_collection = reader_comdirect(SOURCE_PATH)
+    data_collection = reader_comdirect(path)
     for account_name, data in data_collection.items():
         account = SOURCE_COMDIRECT.get_account(account_name)
         assert isinstance(account, Account)
-        if account_name == "Comdirect":
+        if account_name == "Girokonto":
             db_load_function = lambda session_, row_, account_: upsert_comdirect_giro(
                 session=session_,
                 data=row_,
diff --git a/src/models/_common.py b/src/models/_common.py
index fbf530a..95b935c 100644
--- a/src/models/_common.py
+++ b/src/models/_common.py
@@ -34,10 +34,27 @@ def _parse_date_german(date_str: str) -> date | None:
     return date(day=day, month=month, year=year)
 
 
+def date2str(value: date | None, default="--", date_format="%Y-%m-%d") -> str:
+    if value:
+        return value.strftime(date_format)
+    return default
+
+
 def _parse_decimal_german(decimal_str: str) -> Decimal:
     return Decimal(decimal_str.replace(".", "").replace(",", "."))
 
 
+def decimal2str(value: Decimal) -> str:
+    value = Decimal(f"{value:.2f}")
+    int_part, _, frac = str(value).partition(".")
+    groups: list[str] = []
+    while len(int_part) > 3:
+        groups.insert(0, int_part[-3:])
+        int_part = int_part[:-3]
+    groups.insert(0, int_part or "0")
+    return f"{'.'.join(groups)},{frac or '00'}"
+
+
 type Csv2DictRow = dict[str, str]
 type Csv2Dict = list[Csv2DictRow]
 type CsV2DictMulti = dict[str, Csv2Dict]
diff --git a/src/models/b4w.py b/src/models/b4w.py
index 4ecfbfc..f71ff1b 100644
--- a/src/models/b4w.py
+++ b/src/models/b4w.py
@@ -6,7 +6,14 @@ from sqlalchemy import Column, Date, ForeignKey, Integer, String, UniqueConstrai
 from sqlalchemy.orm import relationship
 
 from src.constants import IBAN_PATTERN, Currency
-from src.models._common import BaseModelDb, ExportBaseModel, IngestdbBase, Sign, _hash
+from src.models._common import (
+    BaseModelDb,
+    ExportBaseModel,
+    IngestdbBase,
+    Sign,
+    _hash,
+    date2str,
+)
 
 
 class B4wExport(ExportBaseModel):
@@ -32,6 +39,29 @@ class B4wExport(ExportBaseModel):
     )
     notes: str = Field(alias="Notes")
 
+    def parameters_to_str(self):
+        return (
+            f"Id1='{self.id}', "
+            f"OwnrAcctIBAN='{self.account_iban!s}', "
+            f"AmtCcy='{self.amount_currency!s}', "
+            f"ValDt='{date2str(self.date_valid)}', "
+            f"BookgDt='{date2str( self.date_book )}', "
+            f"Amt='{self.amount!s}', "
+            f"OwnrAcctCcy='{self.account_currency!s}', "
+            f"CdtDbtInd='{self.sign!s}', "
+            f"RmtInf='{self.reference}', "
+            f"RmtdNm='{self.other_name}', "
+            f"RmtdAcctIBAN='{self.other_iban}', "
+            f"Category='{self.category.to_str() if self.category else ''}', "
+            f"Notes='{self.notes}'"
+        )
+
+    def __repr__(self):
+        return f"B4wExport({self.parameters_to_str()})"
+
+    def __str__(self):
+        return f"B4wExport({self.parameters_to_str()})"
+
     @computed_field
     @property
     def hash_id(self) -> str:
diff --git a/tests/test_model_b4wexport.py b/tests/test_model_b4wexport.py
index 866fd44..29dd557 100644
--- a/tests/test_model_b4wexport.py
+++ b/tests/test_model_b4wexport.py
@@ -1,3 +1,5 @@
+import re
+
 import pytest
 from pydantic import ValidationError
 
@@ -29,3 +31,22 @@ def test_b4w_export_account_iban_to_long():
 def test_b4w_export_account_iban_to_short():
     with pytest.raises(ValidationError):
         _ = B4wExportFactory.build(OwnrAcctIBAN="DE123")
+
+
+def test_b4w_export_parameters_to_str():
+    data = B4wExportFactory.build()
+    params = data.parameters_to_str()
+    components = [s.strip() for s in re.split(r",\s*(?=\w+=)", params)]
+    param_names = [component.split("=")[0].strip() for component in components]
+    param_values = [component.split("=")[1].strip() for component in components]
+    assert "OwnrAcctCcy" in param_names
+    assert all(s.startswith("'") and s.endswith("'") for s in param_values)
+
+
+def test_b4w_export_repr_round_trip():
+    data_batch = B4wExportFactory.batch(size=10)
+    assert isinstance(data_batch, list)
+    for data in data_batch:
+        data_str = str(data)
+        data2 = eval(data_str)
+        assert data == data2