diff --git a/gnucash/import-export/aqb/assistant-ab-initial.c b/gnucash/import-export/aqb/assistant-ab-initial.c
index 13425a67ca..551073ef1f 100644
--- a/gnucash/import-export/aqb/assistant-ab-initial.c
+++ b/gnucash/import-export/aqb/assistant-ab-initial.c
@@ -64,6 +64,7 @@
 #include "gnc-ui-util.h"
 #include "gnc-session.h"
 #include "import-account-matcher.h"
+#include "import-utilities.h"
 #ifndef AQBANKING6
 # include <aqbanking/dlg_setup.h>
 #endif
@@ -682,7 +683,8 @@ static void
 clear_kvp_acc_cb(gpointer gnc_acc, gpointer ab_acc, gpointer user_data)
 {
     g_return_if_fail(gnc_acc);
-    /* Delete complete "hbci..." KVPs for GnuCash account */
+    /* Delete "online-id" and complete "hbci..." KVPs for GnuCash account */
+    gnc_account_delete_map_entry((Account *) gnc_acc, "online_id", NULL, NULL, FALSE);
     gnc_account_delete_map_entry((Account *) gnc_acc, "hbci", NULL, NULL, FALSE);
 }
 
@@ -694,6 +696,10 @@ save_kvp_acc_cb(gpointer key, gpointer value, gpointer user_data)
     guint32 ab_account_uid;
     const gchar *ab_accountid, *gnc_accountid;
     const gchar *ab_bankcode, *gnc_bankcode;
+#ifdef AQBANKING6
+    gchar *ab_online_id;
+    const gchar *gnc_online_id;
+#endif
 
     g_return_if_fail(ab_acc && gnc_acc);
 
@@ -726,6 +732,14 @@ save_kvp_acc_cb(gpointer key, gpointer value, gpointer user_data)
             && (!gnc_bankcode
                 || (strcmp(gnc_bankcode, ab_bankcode) != 0)))
         gnc_ab_set_account_bankcode(gnc_acc, ab_bankcode);
+
+#ifdef AQBANKING6
+    ab_online_id = gnc_ab_create_online_id(ab_bankcode, ab_accountid);
+    gnc_online_id = gnc_import_get_acc_online_id(gnc_acc);
+    if (ab_online_id && (!gnc_online_id || (strcmp(ab_online_id, gnc_online_id) != 0)))
+        gnc_import_set_acc_online_id(gnc_acc, ab_online_id);
+    g_free(ab_online_id);
+#endif
 }
 
 static void
diff --git a/gnucash/import-export/aqb/gnc-ab-utils.c b/gnucash/import-export/aqb/gnc-ab-utils.c
index 4e965fa351..09e9f1b36a 100644
--- a/gnucash/import-export/aqb/gnc-ab-utils.c
+++ b/gnucash/import-export/aqb/gnc-ab-utils.c
@@ -63,7 +63,6 @@ G_GNUC_UNUSED static QofLogModule log_module = G_LOG_DOMAIN;
 static AB_BANKING *gnc_AB_BANKING = NULL;
 static gint gnc_AB_BANKING_refcount = 0;
 
-static gchar* create_online_id(const gchar *bankcode, const gchar *accountnumber);
 static gpointer join_ab_strings_cb(const gchar *str, gpointer user_data);
 static Account *gnc_ab_accinfo_to_gnc_acc(GtkWidget *parent,
     AB_IMEXPORTER_ACCOUNTINFO *account_info);
@@ -318,8 +317,8 @@ gnc_AB_VALUE_to_readable_string(const AB_VALUE *value)
 }
 
 
-static gchar*
-create_online_id(const gchar *bankcode, const gchar *accountnumber)
+gchar*
+gnc_ab_create_online_id(const gchar *bankcode, const gchar *accountnumber)
 {
     gchar *online_id;
 
@@ -669,7 +668,7 @@ gnc_ab_accinfo_to_gnc_acc(GtkWidget *parent, AB_IMEXPORTER_ACCOUNTINFO *acc_info
 
     bankcode = AB_ImExporterAccountInfo_GetBankCode(acc_info);
     accountnumber = AB_ImExporterAccountInfo_GetAccountNumber(acc_info);
-    online_id = create_online_id(bankcode, accountnumber);
+    online_id = gnc_ab_create_online_id(bankcode, accountnumber);
     gnc_acc = gnc_import_select_account(
                   parent, online_id, 1, AB_ImExporterAccountInfo_GetAccountName(acc_info),
                   NULL, ACCT_TYPE_NONE, NULL, NULL);
@@ -708,7 +707,7 @@ gnc_ab_txn_to_gnc_acc(GtkWidget *parent, const AB_TRANSACTION *transaction)
         return NULL;
     }
 
-    online_id = create_online_id(bankcode, accountnumber);
+    online_id = gnc_ab_create_online_id(bankcode, accountnumber);
     gnc_acc = gnc_import_select_account(
                   parent, online_id, 1, AB_Transaction_GetLocalName(transaction),
                   NULL, ACCT_TYPE_NONE, NULL, NULL);
diff --git a/gnucash/import-export/aqb/gnc-ab-utils.h b/gnucash/import-export/aqb/gnc-ab-utils.h
index 0cfb4db1c6..3f48462287 100644
--- a/gnucash/import-export/aqb/gnc-ab-utils.h
+++ b/gnucash/import-export/aqb/gnc-ab-utils.h
@@ -276,6 +276,17 @@ gboolean gnc_ab_ieci_run_matcher(GncABImExContextImport *ieci);
  */
 GWEN_DB_NODE *gnc_ab_get_permanent_certs(void);
 
+/**
+ * Creates an online ID from bank code and account number.
+ *
+ * The returned string must be g_free'd by the caller.
+ *
+ * @param bankcode       Bank code
+ * @param accountnumber  Account number
+ * @return an online ID
+ */
+gchar* gnc_ab_create_online_id(const gchar *bankcode, const gchar *accountnumber);
+
 G_END_DECLS
 
 /** @} */