diff --git a/blotoutSDK/src/main/java/com/analytics/blotout/BlotoutAnalyticsInterface.kt b/blotoutSDK/src/main/java/com/analytics/blotout/BlotoutAnalyticsInterface.kt
index 208953c..dff7c11 100644
--- a/blotoutSDK/src/main/java/com/analytics/blotout/BlotoutAnalyticsInterface.kt
+++ b/blotoutSDK/src/main/java/com/analytics/blotout/BlotoutAnalyticsInterface.kt
@@ -17,9 +17,9 @@ interface BlotoutAnalyticsInterface {
 
     fun getUserId():String
 
-    fun transaction(transactionData: TransactionData, withInformation:HashMap<String,Any>?)
+    fun transaction(transactionData: TransactionData, withInformation:HashMap<String,Any>)
 
-    fun item(itemData: Item, withInformation:HashMap<String,Any>?)
+    fun item(itemData: Item, withInformation:HashMap<String,Any>)
 
-    fun persona(personaData: Persona, withInformation:HashMap<String,Any>?)
+    fun persona(personaData: Persona, withInformation:HashMap<String,Any>)
 }
\ No newline at end of file
diff --git a/blotoutSDK/src/main/java/com/analytics/blotout/BlotoutAnalyticsInternal.kt b/blotoutSDK/src/main/java/com/analytics/blotout/BlotoutAnalyticsInternal.kt
index b21ffd0..beaf55b 100644
--- a/blotoutSDK/src/main/java/com/analytics/blotout/BlotoutAnalyticsInternal.kt
+++ b/blotoutSDK/src/main/java/com/analytics/blotout/BlotoutAnalyticsInternal.kt
@@ -144,7 +144,7 @@ open class BlotoutAnalyticsInternal : BlotoutAnalyticsInterface {
     }
 
     @Synchronized
-    override fun transaction(transactionData: TransactionData, withInformation: HashMap<String, Any>?) {
+    override fun transaction(transactionData: TransactionData, withInformation: HashMap<String, Any>) {
         CoroutineScope(Dispatchers.Default).launch {
             try {
                 val _withInformation = withInformation ?: hashMapOf()
@@ -164,7 +164,7 @@ open class BlotoutAnalyticsInternal : BlotoutAnalyticsInterface {
     }
 
     @Synchronized
-    override fun item(itemData: Item, withInformation: HashMap<String, Any>?) {
+    override fun item(itemData: Item, withInformation: HashMap<String, Any>) {
         CoroutineScope(Dispatchers.Default).launch {
             try {
                 val _withInformation = withInformation ?: hashMapOf()
@@ -184,7 +184,7 @@ open class BlotoutAnalyticsInternal : BlotoutAnalyticsInterface {
     }
 
     @Synchronized
-    override fun persona(personaData: Persona , withInformation: HashMap<String, Any>?) {
+    override fun persona(personaData: Persona , withInformation: HashMap<String, Any>) {
         CoroutineScope(Dispatchers.Default).launch {
             try {
                 val _withInformation = withInformation ?: hashMapOf()