diff --git a/modules/sdk-core/src/bitgo/defi/defiVault.ts b/modules/sdk-core/src/bitgo/defi/defiVault.ts
index 150d1d44ad..63071f38f3 100644
--- a/modules/sdk-core/src/bitgo/defi/defiVault.ts
+++ b/modules/sdk-core/src/bitgo/defi/defiVault.ts
@@ -52,7 +52,8 @@ export class DefiVault implements IDefiVault {
    *
    * Internally issues two sendMany calls (approve + deposit) and returns the
    * operationId that links them. If the deposit sendMany fails after
-   * the approve succeeds, the approve is auto-cancelled (fail-fast).
+   * the approve succeeds, the error propagates — the server-side reconciler
+   * handles orphaned approvals.
    *
    * @param params.vaultId - DeFi-service vault identifier
    * @param params.amount - amount in base units of the underlying asset
@@ -67,15 +68,16 @@ export class DefiVault implements IDefiVault {
       throw new Error('amount is required');
     }
 
-    // Layer-1 pre-flight: reject if an active deposit already exists for this (wallet, vault)
-    const activeOps: DefiOperationListResult = await this.bitgo
-      .get(this.bitgo.microservicesUrl(this.operationsUrl()))
-      .query({ vaultId: params.vaultId, state: 'active' })
-      .result();
-
-    if (activeOps.items && activeOps.items.length > 0) {
-      throw new ActiveOperationExistsError(activeOps.items[0].operationId);
-    }
+    // TODO(CGD-1709): Re-enable active operation pre-flight check once the
+    // defi-service operations endpoint is deployed and returning active state.
+    // const activeOps: DefiOperationListResult = await this.bitgo
+    //   .get(this.bitgo.microservicesUrl(this.operationsUrl()))
+    //   .query({ vaultId: params.vaultId, state: 'active' })
+    //   .result();
+    //
+    // if (activeOps.items && activeOps.items.length > 0) {
+    //   throw new ActiveOperationExistsError(activeOps.items[0].operationId);
+    // }
 
     // Step 1: Approve txRequest via sendMany
     const approveResult = await this.wallet.sendMany({
diff --git a/modules/sdk-core/test/unit/bitgo/defi/defiVault.ts b/modules/sdk-core/test/unit/bitgo/defi/defiVault.ts
index c4c810d06b..6a4377c920 100644
--- a/modules/sdk-core/test/unit/bitgo/defi/defiVault.ts
+++ b/modules/sdk-core/test/unit/bitgo/defi/defiVault.ts
@@ -54,10 +54,6 @@ describe('DefiVault', function () {
     it('should call sendMany for approve and deposit on happy path', async function () {
       const operationId = 'op-uuid-123';
 
-      // Pre-flight: no active operations
-      const preflightReq = mockRequest({ items: [] });
-      mockBitGo.get.onFirstCall().returns(preflightReq);
-
       // Mock sendMany for approve and deposit
       const sendManyStub = sinon.stub(wallet, 'sendMany');
       sendManyStub.onFirstCall().resolves({
@@ -82,9 +78,6 @@ describe('DefiVault', function () {
       result.txRequestIds.approve.should.equal('txreq-approve-1');
       result.txRequestIds.deposit.should.equal('txreq-deposit-1');
 
-      // Verify pre-flight was called with correct query
-      preflightReq.query.calledWith({ vaultId: 'vlt-galaxy-usdc', state: 'active' }).should.be.true();
-
       // Verify sendMany was called with correct params for approve
       sendManyStub.calledTwice.should.be.true();
       const approveArgs: any = sendManyStub.firstCall.args[0];
@@ -98,7 +91,8 @@ describe('DefiVault', function () {
       depositArgs.defiParams.operationId.should.equal(operationId);
     });
 
-    it('should reject when an active operation already exists', async function () {
+    // TODO(CGD-1709): Re-enable when active operation pre-flight check is restored
+    xit('should reject when an active operation already exists', async function () {
       const preflightReq = mockRequest({
         items: [{ operationId: 'existing-op-id', state: 'APPROVE_TX_REQUESTED' }],
       });
@@ -117,10 +111,6 @@ describe('DefiVault', function () {
     it('should propagate deposit sendMany failure without cleanup', async function () {
       const operationId = 'op-uuid-456';
 
-      // Pre-flight: no active operations
-      const preflightReq = mockRequest({ items: [] });
-      mockBitGo.get.returns(preflightReq);
-
       // Mock sendMany: approve succeeds, deposit fails
       const sendManyStub = sinon.stub(wallet, 'sendMany');
       sendManyStub.onFirstCall().resolves({
@@ -154,9 +144,6 @@ describe('DefiVault', function () {
     it('should pass clientIdempotencyKey and walletPassphrase when provided', async function () {
       const operationId = 'op-uuid-789';
 
-      const preflightReq = mockRequest({ items: [] });
-      mockBitGo.get.returns(preflightReq);
-
       const sendManyStub = sinon.stub(wallet, 'sendMany');
       sendManyStub.onFirstCall().resolves({
         txRequest: {