diff --git a/cdrc/cdrc.go b/cdrc/cdrc.go
index 37115d409..28e0e9567 100644
--- a/cdrc/cdrc.go
+++ b/cdrc/cdrc.go
@@ -21,7 +21,6 @@ package cdrc
 import (
 	"bufio"
 	"encoding/csv"
-	"encoding/json"
 	"fmt"
 	"io"
 	"io/ioutil"
@@ -165,8 +164,7 @@ func (self *Cdrc) recordToStoredCdr(record []string) (*utils.StoredCdr, error) {
 		for _, rsrFld := range httpFieldCfg.Value {
 			httpAddr += rsrFld.ParseValue("")
 		}
-		cdrJson, _ := json.Marshal(storedCdr)
-		if outValByte, err = utils.HttpJsonPost(httpAddr, self.httpSkipTlsCheck, cdrJson); err != nil && httpFieldCfg.Mandatory {
+		if outValByte, err = utils.HttpJsonPost(httpAddr, self.httpSkipTlsCheck, storedCdr); err != nil && httpFieldCfg.Mandatory {
 			return nil, err
 		} else {
 			fieldVal = string(outValByte)
@@ -246,12 +244,12 @@ func (self *Cdrc) processFile(filePath string) error {
 		}
 		procRowNr += 1 // Only increase if not end of file
 		if err != nil {
-			engine.Logger.Err(fmt.Sprintf("<Cdrc> Error in csv file: %s", err.Error()))
+			engine.Logger.Err(fmt.Sprintf("<Cdrc> Row %d - csv error: %s", procRowNr, err.Error()))
 			continue // Other csv related errors, ignore
 		}
 		storedCdr, err := self.recordToStoredCdr(record)
 		if err != nil {
-			engine.Logger.Err(fmt.Sprintf("<Cdrc> Error in csv file: %s", err.Error()))
+			engine.Logger.Err(fmt.Sprintf("<Cdrc> Row %d - failed converting to StoredCdr, error: %s", procRowNr, err.Error()))
 			continue
 		}
 		if self.cdrsAddress == utils.INTERNAL {
diff --git a/config/config.go b/config/config.go
index 4b5cbb12b..b42d47bda 100644
--- a/config/config.go
+++ b/config/config.go
@@ -233,7 +233,7 @@ func (self *CGRConfig) checkConfigSanity() error {
 			if cdrcInst.CdrFormat == utils.CSV {
 				for _, cdrFld := range cdrcInst.CdrFields {
 					for _, rsrFld := range cdrFld.Value {
-						if _, errConv := strconv.Atoi(rsrFld.Id); errConv != nil {
+						if _, errConv := strconv.Atoi(rsrFld.Id); errConv != nil && !rsrFld.IsStatic() {
 							return fmt.Errorf("CDR fields must be indices in case of .csv files, have instead: %s", rsrFld.Id)
 						}
 					}
diff --git a/utils/coreutils.go b/utils/coreutils.go
index 4b9ce11c6..b27bf0bf3 100644
--- a/utils/coreutils.go
+++ b/utils/coreutils.go
@@ -278,6 +278,9 @@ func HttpJsonPost(url string, skipTlsVerify bool, content interface{}) ([]byte,
 	if err != nil {
 		return nil, err
 	}
+	if resp.StatusCode > 299 {
+		return respBody, fmt.Errorf("Unexpected status code received: %d", resp.StatusCode)
+	}
 	return respBody, nil
 }