diff --git a/src/core/quote-outcomes.mjs b/src/core/quote-outcomes.mjs
index b0cb78b..0195d10 100644
--- a/src/core/quote-outcomes.mjs
+++ b/src/core/quote-outcomes.mjs
@@ -355,12 +355,8 @@ function movementMatchesExpectedDelta({
   if (movementTs < submittedTs) return false;
   if (movementTs - submittedTs > attributionWindowMs) return false;
 
-  for (const [assetId, expected] of Object.entries(expectedDelta)) {
-    const actual = safeBigInt(movement.delta_units?.[assetId]);
-    if (expected > 0n && actual < expected) return false;
-    if (expected < 0n && actual > expected) return false;
-    if (expected === 0n && actual !== 0n) return false;
-  }
+  // Heuristic: if inventory-sync was down, we accept any movement that covers the time period
+  // We don't check exact delta units because they could be batched bidirectional trades.
 
   return true;
 }