diff --git a/docs/administration.md b/docs/administration.md
index 827450127..f34156898 100644
--- a/docs/administration.md
+++ b/docs/administration.md
@@ -349,11 +349,17 @@ When you use the provided docker compose script, put the export inside
 the `export` folder in your paperless source directory. Specify
 `../export` as the `source`.
 
+Note that .zip files (as can be generated from the exporter) are not supported.
+
 !!! note
 
     Importing from a previous version of Paperless may work, but for best
     results it is suggested to match the versions.
 
+!!! warning
+
+    The importer should be run against a completely empty installation (database and directories) of Paperless-ngx.
+
 ### Document retagger {#retagger}
 
 Say you've imported a few hundred documents and now want to introduce a