diff --git a/agent/fw_slim.c b/agent/fw_slim.c
index 493e325a8..a70323459 100644
--- a/agent/fw_slim.c
+++ b/agent/fw_slim.c
@@ -81,28 +81,65 @@ NR_PHP_WRAPPER(nr_slim2_route_dispatch) {
 NR_PHP_WRAPPER_END
 
 /*
- * Wrap the \Slim\Route::run method, which is the happy path for Slim routing.
+ * Wrap the Slim 3\Slim\Route::run method
+ * and
+ * Slim 4 Slim\\Routing\\Route::run
+ * which are the happy paths for Slim 3/4 routing.
  * i.e. The router has succesfully matched the URL and dispatched the request
  * to a route.
  *
- * In this case, `nr_txn_set_path` is called after `NR_PHP_WRAPPER_CALL` with
- * `NR_OK_TO_OVERWRITE` and as this corresponds to calling the wrapped function
- * in func_end no change is needed to ensure OAPI compatibility as it will use
- * the default func_end after callback. This entails that the first wrapped
- * function call of this type gets to name the txn.
+ * In this case, `nr_txn_set_path` is called before `NR_PHP_WRAPPER_CALL` with
+ * `NR_OK_TO_OVERWRITE` and as this corresponds to calling the last wrapped
+ * function call of this type gets to name the txn; therefore needs a before
+ * call for OAPI.
  */
 NR_PHP_WRAPPER(nr_slim3_4_route_run) {
   zval* this_var = NULL;
   char* txn_name = NULL;
 
   (void)wraprec;
+
   NR_PHP_WRAPPER_REQUIRE_FRAMEWORK(NR_FW_SLIM);
 
   this_var = nr_php_scope_get(NR_EXECUTE_ORIG_ARGS TSRMLS_CC);
   txn_name = nr_slim_path_from_route(this_var TSRMLS_CC);
   nr_php_scope_release(&this_var);
 
+  if (txn_name) {
+    nr_txn_set_path("Slim", NRPRG(txn), txn_name, NR_PATH_TYPE_ACTION,
+                    NR_OK_TO_OVERWRITE);
+    nr_free(txn_name);
+  }
+
   NR_PHP_WRAPPER_CALL;
+}
+NR_PHP_WRAPPER_END
+
+/*
+ * public function dispatch(string $method, string $uri): RoutingResults
+ * This is fallback naming mechanism for Slim 4 routing when the Slim 4
+ * Slim\\Routing\\Route::run does not run due middlware intervening on
+ * certain errors.
+ * In this case, `nr_txn_set_path` is called before `NR_PHP_WRAPPER_CALL` with
+ * `NR_NOT_OK_TO_OVERWRITE` and as this corresponds to calling the first wrapped
+ * function in func_begin.
+ */
+NR_PHP_WRAPPER(nr_slim4_route_dispatch) {
+  char* txn_name = NULL;
+  zval* route_name = NULL;
+
+  (void)wraprec;
+
+  NR_PHP_WRAPPER_REQUIRE_FRAMEWORK(NR_FW_SLIM);
+
+  /* Get the route name. The first arg is the method, 2nd arg is routename. */
+  route_name = nr_php_arg_get(2, NR_EXECUTE_ORIG_ARGS);
+
+  if (nr_php_is_zval_valid_string(route_name)) {
+    txn_name = nr_strndup(Z_STRVAL_P(route_name), Z_STRLEN_P(route_name));
+  }
+
+  nr_php_arg_release(&route_name);
 
   if (txn_name) {
     nr_txn_set_path("Slim", NRPRG(txn), txn_name, NR_PATH_TYPE_ACTION,
@@ -120,7 +157,7 @@ NR_PHP_WRAPPER(nr_slim_application_construct) {
   (void)wraprec;
 
   version = nr_php_get_object_constant(this_var, "VERSION");
-  
+
   if (NRINI(vulnerability_management_package_detection_enabled)) {
     // Add php package to transaction
     nr_txn_add_php_package(NRPRG(txn), PHP_PACKAGE_NAME, version);
@@ -139,12 +176,34 @@ void nr_slim_enable(TSRMLS_D) {
 
   nr_php_wrap_user_function(NR_PSTR("Slim\\Route::dispatch"),
                             nr_slim2_route_dispatch TSRMLS_CC);
+
+#if ZEND_MODULE_API_NO >= ZEND_8_0_X_API_NO \
+    && !defined OVERWRITE_ZEND_EXECUTE_DATA
+
   /* Slim 3 */
-  nr_php_wrap_user_function(NR_PSTR("Slim\\Route::run"),
-                            nr_slim3_4_route_run TSRMLS_CC);
+  nr_php_wrap_user_function_before_after_clean(
+      NR_PSTR("Slim\\Route::run"), nr_slim3_4_route_run, NULL, NULL);
+
   /* Slim 4 */
+  nr_php_wrap_user_function_before_after_clean(
+      NR_PSTR("Slim\\Routing\\Route::run"), nr_slim3_4_route_run, NULL, NULL);
+
+  /* Slim 4 */
+  nr_php_wrap_user_function_before_after_clean(
+      NR_PSTR("Slim\\Routing\\Dispatcher::dispatch"), nr_slim4_route_dispatch,
+      NULL, NULL);
+#else
+  /* Slim 4*/
   nr_php_wrap_user_function(NR_PSTR("Slim\\Routing\\Route::run"),
                             nr_slim3_4_route_run TSRMLS_CC);
+  /* Slim 4 */
+  nr_php_wrap_user_function(NR_PSTR("Slim\\Routing\\Dispatcher::dispatch"),
+                            nr_slim4_route_dispatch TSRMLS_CC);
+
+  /* Slim 3 */
+  nr_php_wrap_user_function(NR_PSTR("Slim\\Route::run"),
+                            nr_slim3_4_route_run TSRMLS_CC);
+#endif
 
   /* Slim 2 does not have the same path as Slim 3/4 which is why
     we need to separate these*/