diff --git a/documentation/IDTA-01002-3/modules/ROOT/pages/changelog.adoc b/documentation/IDTA-01002-3/modules/ROOT/pages/changelog.adoc
index 05f7bfd0..d1a86628 100644
--- a/documentation/IDTA-01002-3/modules/ROOT/pages/changelog.adoc
+++ b/documentation/IDTA-01002-3/modules/ROOT/pages/changelog.adoc
@@ -53,6 +53,7 @@ Major Changes:
 
 Minor Changes:
 
+* fix: Changed JSON Schema validation from `oneOf` to `anyOf` where BNF grammar allows mixed inline and named groups in concatenation scenarios.
 * fix: Wrong ServiceSpecificationProfileEnum values for v3.0 profiles. (https://github.com/admin-shell-io/aas-specs-api/issues/526[#526])
 * removed: Remove TREE. (https://github.com/admin-shell-io/aas-specs-api/issues/537)
 * fix: fixed FILTER object in json schema & fixed inconsistencies in BNF (https://github.com/admin-shell-io/aas-specs-api/issues/547)
diff --git a/documentation/IDTA-01002-3/modules/ROOT/pages/schema.adoc b/documentation/IDTA-01002-3/modules/ROOT/pages/schema.adoc
index 348064ec..f75b61e7 100644
--- a/documentation/IDTA-01002-3/modules/ROOT/pages/schema.adoc
+++ b/documentation/IDTA-01002-3/modules/ROOT/pages/schema.adoc
@@ -607,7 +607,7 @@
         "RIGHTS",
         "ACCESS"
       ],
-      "oneOf": [
+      "anyOf": [
         {
           "required": [
             "ATTRIBUTES"
@@ -671,7 +671,7 @@
           ]
         },
         {
-          "oneOf": [
+          "anyOf": [
             {
               "required": [
                 "OBJECTS"
diff --git a/documentation/IDTA-01002-3/modules/ROOT/partials/query-json-schema.json b/documentation/IDTA-01002-3/modules/ROOT/partials/query-json-schema.json
index a5f131d6..93e66007 100644
--- a/documentation/IDTA-01002-3/modules/ROOT/partials/query-json-schema.json
+++ b/documentation/IDTA-01002-3/modules/ROOT/partials/query-json-schema.json
@@ -591,7 +591,7 @@
         "RIGHTS",
         "ACCESS"
       ],
-      "oneOf": [
+      "anyOf": [
         {
           "required": [
             "ATTRIBUTES"
@@ -655,7 +655,7 @@
           ]
         },
         {
-          "oneOf": [
+          "anyOf": [
             {
               "required": [
                 "OBJECTS"