diff --git a/source/static/js/controller/invoices.js b/source/static/js/controller/invoices.js
index 0de74b5..bd4c6b4 100644
--- a/source/static/js/controller/invoices.js
+++ b/source/static/js/controller/invoices.js
@@ -858,6 +858,13 @@ function grid_details_before_edit_stop(state, editor){
             return true
         }
         state.value = state.value.trim()
+        if(state.value.length > 1000){
+            msg = 'La descripción tiene más de 1000 caracteres, esta  '
+            msg += 'descripción será rechazada por el SAT. Edita esta '
+            msg += 'descripción hasta que ya no veas este mensaje. <BR>'
+            msg += '<BR>Caracteres: ' + state.value.length
+            msg_error(msg)
+        }
         return true
     }