diff --git a/common/proto/accounting.proto b/common/proto/accounting.proto
index c61f0d8..3818eda 100644
--- a/common/proto/accounting.proto
+++ b/common/proto/accounting.proto
@@ -26,9 +26,9 @@ service Accounting {
   rpc SoftDeleteJournalLine(SoftDeleteJournalLineRequest) returns (Journal);
 }
 
-// Tables with an active posting script accept journal_id as a reserved key in
-// PostTableDataRequest.data. It selects the journal receiving generated lines
-// and is removed before the source row is validated or stored.
+// Tables with an active posting script define journal_id as a permanent BIGINT
+// column. PostTableDataRequest.data must include it; the value is stored on the
+// source row and selects the journal receiving generated lines.
 
 enum JournalSide {
   JOURNAL_SIDE_UNSPECIFIED = 0;
diff --git a/common/src/proto/descriptor.bin b/common/src/proto/descriptor.bin
index 5a0f945..fb258fa 100644
Binary files a/common/src/proto/descriptor.bin and b/common/src/proto/descriptor.bin differ
diff --git a/server b/server
index 4b95ede..255f334 160000
--- a/server
+++ b/server
@@ -1 +1 @@
-Subproject commit 4b95edec2bd38c6a2c6405e66c37ef4ca13e3222
+Subproject commit 255f334bf48599ab53e1dad02f7334a8611ef2df