diff --git a/api/routes/pally.py b/api/routes/pally.py
index 6e1805e..8178606 100644
--- a/api/routes/pally.py
+++ b/api/routes/pally.py
@@ -35,6 +35,7 @@ async def pally_callback(
     deps: APIDependenciesDTO = Depends(get_deps),
 ):
     oid = custom or ""
+    logger.info("invid: %s, outsum: %s, commission: %s, TrsId: %s, status: %s, currencyin: %s, custom: %s, sign: %s", InvId, OutSum, Commission, TrsId, Status, CurrencyIn, custom, SignatureValue)
     raw_string = f"{OutSum}:{InvId}:{settings.pally_token}"
     expected_signature = hashlib.md5(raw_string.encode("utf-8")).hexdigest().upper()
 
@@ -49,7 +50,7 @@ async def pally_callback(
     logger.info("Received successfully paid bill %s", TrsId)
 
     if not oid.isdigit():
-        logger.critical("Invalid custom field format for TrsId %s", TrsId)
+        logger.critical("Invalid custom field format for TrsId %s: %s", TrsId, custom)
         return "OK"
 
     bill = await deps.bills_repository.get_bill_by_id(session, int(oid))