diff --git a/.changes/unreleased/Fixed-20240111-115909.yaml b/.changes/unreleased/Fixed-20240111-115909.yaml
new file mode 100644
index 000000000..b5e78c73b
--- /dev/null
+++ b/.changes/unreleased/Fixed-20240111-115909.yaml
@@ -0,0 +1,6 @@
+kind: Fixed
+body: Fix the id_seq used when creating a new accompanying period participation during
+  fusion of two person files
+time: 2024-01-11T11:59:09.581242964+01:00
+custom:
+  Issue: ""