membershipworks: Allow missing fields in transactions json

membershipworks/models.py

@@ -311,10 +311,20 @@ class Transaction(BaseModel):
         txn["_dp"] = datetime.fromtimestamp(
             txn["_dp"], tz=timezone.get_current_timezone()
         )
+        allowed_missing_fields = [
+            "sid",
+            "uid",
+            "eid",
+            "fee",
+            "sum",
+        ]
+        for field in allowed_missing_fields:
+            if field not in txn:
+                txn[field] = None
         return super().from_csv_dict(txn)
 
     _csv_headers_override = {
-        "member_id": "uid",
+        "event_id": "eid",
         "timestamp": "_dp",
         "type": "Transaction Type",
         "for_what": "Event/Form Name",