diff --git a/config/configsanity.go b/config/configsanity.go
index 8e069bfb5..4c517e476 100644
--- a/config/configsanity.go
+++ b/config/configsanity.go
@@ -693,6 +693,35 @@ func (cfg *CGRConfig) checkConfigSanity() error {
 			if !possibleReaderTypes.Has(rdr.Type) {
 				return fmt.Errorf("<%s> unsupported data type: %s for reader with ID: %s", utils.ERs, rdr.Type, rdr.ID)
 			}
+			var pAct string
+			if act, has := rdr.Opts[utils.PartialCacheActionOpt]; has { // check the action from opts
+				if pAct = utils.IfaceAsString(act); pAct != utils.MetaDumpToFile &&
+					pAct != utils.MetaNone &&
+					pAct != utils.MetaPostCDR {
+					return fmt.Errorf("<%s> wrong partial expiry action for reader with ID: %s", utils.ERs, rdr.ID)
+				}
+			}
+			if pAct != utils.MetaNone { // if is *none we do not process the evicted events
+				if fldSep, has := rdr.Opts[utils.PartialOrderFieldOpt]; has && // the field we order after must not be empty
+					utils.IfaceAsString(fldSep) == utils.EmptyString {
+					return fmt.Errorf("<%s> empty %s for reader with ID: %s", utils.ERs, utils.PartialOrderFieldOpt, rdr.ID)
+				}
+			} else if pAct == utils.MetaDumpToFile { // only if the action is *dump_to_file
+				path := rdr.ProcessedPath
+				if pathVal, has := rdr.Opts[utils.PartialPathOpt]; has { // the path from options needs to exists if overwriten by reader
+					path = utils.IfaceAsString(pathVal)
+				}
+				if _, err := os.Stat(utils.IfaceAsString(path)); err != nil && os.IsNotExist(err) {
+					return fmt.Errorf("<%s> nonexistent partial folder: %s for reader with ID: %s", utils.ERs, path, rdr.ID)
+				}
+				if fldSep, has := rdr.Opts[utils.PartialCSVFieldSepartorOpt]; has && // the separtor must not be empty
+					utils.IfaceAsString(fldSep) == utils.EmptyString {
+					return fmt.Errorf("<%s> empty %s for reader with ID: %s", utils.ERs, utils.PartialCSVFieldSepartorOpt, rdr.ID)
+				}
+				if len(rdr.CacheDumpFields) == 0 {
+					return fmt.Errorf("<%s> empty %s for reader with ID: %s", utils.ERs, utils.CacheDumpFieldsCfg, rdr.ID)
+				}
+			}
 			switch rdr.Type {
 			case utils.MetaFileCSV:
 				paths := []string{rdr.ProcessedPath, rdr.SourcePath}
diff --git a/ers/ers.go b/ers/ers.go
index 88ffc8070..5b8f86a44 100644
--- a/ers/ers.go
+++ b/ers/ers.go
@@ -396,9 +396,9 @@ func (erS *ERService) onEvicted(id string, value interface{}) {
 		}
 		erS.rdrEvents <- &erEvent{cgrEvent: cgrEv, rdrCfg: eEvs.rdrCfg}
 	case utils.MetaDumpToFile: // apply the cacheDumpFields to the united events and write the record to file
-		var expPath string
-		if path, has := eEvs.rdrCfg.Opts[utils.PartialPathOpt]; has {
-			expPath = utils.IfaceAsString(path)
+		expPath := eEvs.rdrCfg.ProcessedPath
+		if pathVal, has := eEvs.rdrCfg.Opts[utils.PartialPathOpt]; has {
+			expPath = utils.IfaceAsString(pathVal)
 		}
 		if expPath == utils.EmptyString { // do not write the partial event to file
 			return