diff --git a/doc/config.html b/doc/config.html
index 02fd23df..33166381 100755
--- a/doc/config.html
+++ b/doc/config.html
@@ -753,7 +753,8 @@ Menu commands = List, New, Edit, Delete, Reply, Duplicate, Find, Config, Help
         <b><code>Copy to = &lt;logbook list&gt;</code></b> and <b><code>Move to
         = &lt;logbook list&gt;</code></b> it is possible to specify a list of
         destination logbooks, separated by commata. This can make sense if only
-        certain logbooks make sense as destinations.
+        certain logbooks make sense as destinations. The flag <code><b>Preserve IDs</b></code>
+        can be used to keep the entry ID in the destination logbook.
       </li>
       <li>
         <b><code>List Menu commands = &lt;list&gt;</code></b><br>
@@ -2540,6 +2541,15 @@ Options Location = Main Building{a}, New Building{b}, Old Building{c}
         checkbox. In logbooks where a script should only be ocasionally
         executed, it could make sense to set this flag to <b>1</b>.
       </li>
+      <li>
+        <b><code>Preserve IDs = 0|1</code></b><br>
+        When a logbook entry is copied or moved to another logbook, it obtains
+        a new entry ID in the destination logbook. This can cause problems
+        if the logbook entries reference each other with their IDs. To keep the
+        same ID in the destination logbook, this setting can be set to <b>1</b>.
+        If an entry with the same ID in the destination logbook exists already,
+        it gets overwritten. Default for this setting is <b>0</b>.
+      </li>
     </ul>
     <p>
       <a name="themes" id="themes"></a>
diff --git a/src/elogd.c b/src/elogd.c
index 4f84ab73..daec7d04 100755
--- a/src/elogd.c
+++ b/src/elogd.c
@@ -22552,6 +22552,7 @@ void copy_to(LOGBOOK * lbs, int src_id, char *dest_logbook, int move, int orig_i
        attachment[MAX_ATTACHMENTS][MAX_PATH_LENGTH], encoding[80], locked_by[256], *buffer,
        list[MAX_N_ATTR][NAME_LENGTH];
    LOGBOOK *lbs_dest;
+   BOOL bedit;
 
    for (i = 0; lb_list[i].name[0]; i++)
       if (strieq(lb_list[i].name, dest_logbook))
@@ -22653,6 +22654,17 @@ void copy_to(LOGBOOK * lbs, int src_id, char *dest_logbook, int move, int orig_i
             strsubst(text, TEXT_SIZE, str, str2);
       }
 
+      /* keep original message ID if requested */
+      message_id = 0;
+      bedit = FALSE;
+      if (getcfg(lbs->name, "Preserve IDs", str, sizeof(str)) && atoi(str) == 1) {
+         message_id = source_id;
+
+         /* test if entry exists already */
+         status = el_retrieve(lbs_dest, message_id, NULL, NULL, NULL, 0, NULL, 0, NULL, NULL, NULL, NULL, NULL);
+         bedit = (status == EL_SUCCESS);
+      }
+
       /* if called recursively (for threads), put in correct in_reply_to */
       str[0] = 0;
       if (orig_id)
@@ -22661,7 +22673,7 @@ void copy_to(LOGBOOK * lbs, int src_id, char *dest_logbook, int move, int orig_i
       /* submit in destination logbook without links, submit all attributes from
          the source logbook even if the destination has a differnt number of attributes */
 
-      message_id = el_submit(lbs_dest, 0, FALSE, date, attr_list, attrib, lbs->n_attr, text, str, "",
+      message_id = el_submit(lbs_dest, message_id, bedit, date, attr_list, attrib, lbs->n_attr, text, str, "",
                              encoding, attachment, TRUE, NULL);
 
       if (message_id <= 0) {