diff --git a/entity/Activity_entity/entityfields/maindocuments/children/assignmentname_param/code.js b/entity/Activity_entity/entityfields/maindocuments/children/assignmentname_param/code.js
new file mode 100644
index 0000000000000000000000000000000000000000..3e4bf7585b2ca4628118e46818683fc51bfcf1c5
--- /dev/null
+++ b/entity/Activity_entity/entityfields/maindocuments/children/assignmentname_param/code.js
@@ -0,0 +1,3 @@
+import("system.result");
+
+result.string("DOCUMENT");
\ No newline at end of file
diff --git a/entity/Activity_entity/entityfields/maindocuments/children/assignmentrowid_param/code.js b/entity/Activity_entity/entityfields/maindocuments/children/assignmentrowid_param/code.js
new file mode 100644
index 0000000000000000000000000000000000000000..06fe7d36324315ad85bfd6d0099c5aa6b2da98d4
--- /dev/null
+++ b/entity/Activity_entity/entityfields/maindocuments/children/assignmentrowid_param/code.js
@@ -0,0 +1,4 @@
+import("system.result");
+import("system.vars");
+
+result.string(vars.get("$field.ACTIVITYID"));
\ No newline at end of file
diff --git a/entity/Activity_entity/entityfields/maindocuments/children/assignmenttable_param/code.js b/entity/Activity_entity/entityfields/maindocuments/children/assignmenttable_param/code.js
new file mode 100644
index 0000000000000000000000000000000000000000..f39bb16bbc16cc7a0d9f39a6bc549c63a0f16d02
--- /dev/null
+++ b/entity/Activity_entity/entityfields/maindocuments/children/assignmenttable_param/code.js
@@ -0,0 +1,3 @@
+import("system.result");
+
+result.string("ACTIVITY");
\ No newline at end of file