diff --git a/Agent/Analytics/NRMAAnalytics.mm b/Agent/Analytics/NRMAAnalytics.mm
index 16fa2c4f..873fe2d7 100644
--- a/Agent/Analytics/NRMAAnalytics.mm
+++ b/Agent/Analytics/NRMAAnalytics.mm
@@ -605,7 +605,13 @@ - (BOOL) setSessionAttribute:(NSString*)name value:(id)value persistent:(BOOL)is
                                                                             [](bool) { return true;});
                 return _analyticsController->addNRAttribute(attribute);
             } else {
-                NRLOG_AGENT_ERROR(@"Session attribute \'value\' must be either an NSString* or NSNumber*");
+                if (name == kNRMA_Attrib_userId && !value ) {
+                    NRLOG_AGENT_VERBOSE(@"Successfully set userId to nil");
+                    return YES;
+
+                }else {
+                    NRLOG_AGENT_ERROR(@"Session attribute \'value\' must be either an NSString* or NSNumber*");
+                }
                 return NO;
             }
         } catch (std::exception& error) {
diff --git a/Agent/Analytics/NRMASAM.mm b/Agent/Analytics/NRMASAM.mm
index 800c0101..ccfd8d67 100644
--- a/Agent/Analytics/NRMASAM.mm
+++ b/Agent/Analytics/NRMASAM.mm
@@ -90,6 +90,10 @@ -  (BOOL) checkAttribute:(NSString*)name value:(id)value {
     BOOL validAttribute = [attributeValidator nameValidator:name];
     BOOL validValue = [attributeValidator valueValidator:value];
 
+    if (name == kNRMA_Attrib_userId && !value ) {
+        NRLOG_AGENT_VERBOSE(@"Successfully set userId to nil");
+        return YES;
+    }
     if (!(validAttribute && validValue)) {
         NRLOG_AGENT_VERBOSE(@"Failed to create attribute named %@", name);
         return NO;