diff --git a/packages/wasm-sdk/tests/functional/transitions/contracts.spec.ts b/packages/wasm-sdk/tests/functional/transitions/contracts.spec.ts
index ee7913fc5d2..c6005128016 100644
--- a/packages/wasm-sdk/tests/functional/transitions/contracts.spec.ts
+++ b/packages/wasm-sdk/tests/functional/transitions/contracts.spec.ts
@@ -39,12 +39,14 @@ describe('Contract State Transitions', function describeContractStateTransitions
       // Contract operations require at least HIGH security level (key index 2)
       const { signer, identityKey } = createTestSignerAndKey(sdk, 1, 2);
 
-      // Create a simple test schema with a "note" document type
-      // Position property is required for document types and their properties
+      // Create a simple test schema with a "note" document type.
+      // `position` is required on each *property* (to order fields in the
+      // document row) — it is NOT a valid key on the document-type root.
+      // Under protocol v12 the document meta-schema is strict
+      // (`additionalProperties: false`) and rejects stray root-level keys.
       const schema = {
         note: {
           type: 'object',
-          position: 0,
           properties: {
             message: {
               type: 'string',
@@ -114,7 +116,6 @@ describe('Contract State Transitions', function describeContractStateTransitions
         ...existingSchemas,
         task: {
           type: 'object',
-          position: 1,
           properties: {
             title: {
               type: 'string',
diff --git a/packages/wasm-sdk/tests/functional/transitions/documents.spec.ts b/packages/wasm-sdk/tests/functional/transitions/documents.spec.ts
index 2b5d5457541..fc4ac99aa32 100644
--- a/packages/wasm-sdk/tests/functional/transitions/documents.spec.ts
+++ b/packages/wasm-sdk/tests/functional/transitions/documents.spec.ts
@@ -78,13 +78,15 @@ describe('Document State Transitions', function describeDocumentStateTransitions
       // Contract operations require at least HIGH security level (key index 2)
       const { signer, identityKey } = createTestSignerAndKey(sdk, 1, 2);
 
-      // Create a schema with mutable, deletable, and transferable document types
-      // Position property is required for document types and properties
+      // Create a schema with mutable, deletable, and transferable document types.
+      // `position` is required on each *property* (to order fields in the
+      // document row) — it is NOT a valid key on the document-type root.
+      // Under protocol v12 the document meta-schema is strict
+      // (`additionalProperties: false`) and rejects stray root-level keys.
       const schema = {
         // Mutable document type - can be updated
         mutableNote: {
           type: 'object',
-          position: 0,
           documentsMutable: true,
           canBeDeleted: true,
           properties: {
@@ -101,7 +103,6 @@ describe('Document State Transitions', function describeDocumentStateTransitions
         // transferable: 1 = Always transferable (see Transferable enum in DPP)
         transferableItem: {
           type: 'object',
-          position: 1,
           transferable: 1,
           documentsMutable: false,
           canBeDeleted: false,