Index: manual/modeling/geometry_nodes/attributes_reference.rst
===================================================================
--- manual/modeling/geometry_nodes/attributes_reference.rst	(revision 10083)
+++ manual/modeling/geometry_nodes/attributes_reference.rst	(working copy)
@@ -84,6 +84,9 @@
 type is preferred when there are matching names. This is particularly important when joining geometry
 with named attributes with the :doc:`/modeling/geometry_nodes/geometry/join_geometry`
 
+To store 2D Vectors (UV maps) and Byte Colors the
+:doc:`store named attribute node</modeling/geometry_nodes/attribute/store_named_attribute>` must be
+used because there are no sockets for those types.
 
 .. _attribute-domains:
 
Index: manual/modeling/geometry_nodes/mesh/uv/uv_unwrap.rst
===================================================================
--- manual/modeling/geometry_nodes/mesh/uv/uv_unwrap.rst	(revision 10083)
+++ manual/modeling/geometry_nodes/mesh/uv/uv_unwrap.rst	(working copy)
@@ -54,3 +54,10 @@
 
 UV
    The generated UV coordinates between 0 and 1 for each face corner in the selected faces.
+
+.. note::
+   In order for Blender to recognize the created attribute as a UV map, it must be created with the
+   :doc:`store named attribute node</modeling/geometry_nodes/attribute/store_named_attribute>` on
+   the :doc:`face corner domain</modeling/geometry_nodes/attributes_reference>` with the
+   :doc:`2D Vector data type</modeling/geometry_nodes/attributes_reference>`. This is necessary
+   because there is no 2D vector socket type.