diff --git a/lib/backpex/item_actions/item_action.ex b/lib/backpex/item_actions/item_action.ex
index 2add1ef7..f1a74715 100644
--- a/lib/backpex/item_actions/item_action.ex
+++ b/lib/backpex/item_actions/item_action.ex
@@ -33,6 +33,14 @@ defmodule Backpex.ItemAction do
               | Ecto.Changeset.t()
               | {Ecto.Changeset.data(), Ecto.Changeset.types()}
 
+  @doc """
+  The initial params for the changeset. The result is passed as the second parameter to `c:changeset/3` the first time it is called.
+
+  This function is optional and can be used to set an initial change, e.g. to pre-populate the form with values.
+  If this function is not provided, an empty map will be used.
+  """
+  @callback init_params(assigns :: map()) :: map()
+
   @doc """
   The changeset to be used in the resource action. It may be used to validate form inputs.
 
@@ -117,6 +125,9 @@ defmodule Backpex.ItemAction do
 
         {%{}, types}
       end
+
+      @impl Backpex.ItemAction
+      def init_params(_assigns), do: %{}
     end
   end
 end
diff --git a/lib/backpex/live_resource.ex b/lib/backpex/live_resource.ex
index dcca8cab..d6649610 100644
--- a/lib/backpex/live_resource.ex
+++ b/lib/backpex/live_resource.ex
@@ -1174,12 +1174,13 @@ defmodule Backpex.LiveResource do
 
   defp open_action_confirm_modal(socket, action, key) do
     base_item = action.module.base_item(socket.assigns)
+    init_params = action.module.init_params(socket.assigns)
 
     changeset_function = &action.module.changeset/3
 
     metadata = Resource.build_changeset_metadata(socket.assigns)
 
-    changeset = changeset_function.(base_item, %{}, metadata)
+    changeset = changeset_function.(base_item, init_params, metadata)
 
     socket =
       socket