diff --git a/svc/queries/product_pricing_fx_publish.go b/svc/queries/product_pricing_fx_publish.go
index 67be7f2..0217fa1 100644
--- a/svc/queries/product_pricing_fx_publish.go
+++ b/svc/queries/product_pricing_fx_publish.go
@@ -264,8 +264,8 @@ norm AS (
       norm.product_code AS product_code,
       md.val1::bigint AS dim1,
       CASE
-        WHEN md.val2 IS NULL OR md.val2 = 0 THEN NULL
-        ELSE md.val2::bigint
+        WHEN md.val3 IS NULL OR md.val3 = 0 THEN NULL
+        ELSE md.val3::bigint
       END AS dim3
     FROM norm
     JOIN mmitem mm
diff --git a/svc/routes/product_pricing_save.go b/svc/routes/product_pricing_save.go
index 496021a..5d09ed8 100644
--- a/svc/routes/product_pricing_save.go
+++ b/svc/routes/product_pricing_save.go
@@ -591,9 +591,10 @@ DO UPDATE SET dim_id = EXCLUDED.dim_id, updated_at = EXCLUDED.updated_at
 				if err := rows.Scan(&colorCode, &dim1Code, &dim3Code); err != nil {
 					return nil, err
 				}
-				// Resolve to PG dim ids. For this installation we align with PG's authoritative mmitem_dim model:
-				// - dim1 corresponds to mmitem_dim.val1 (typically Color).
-				// - dim3 corresponds to mmitem_dim.val2 (typically Size).
+				// Resolve to PG dim ids. For this installation we align with mmitem_dim key:
+				// - dim1 = color
+				// - dim3 = itemdim3 (optional)
+				// Size (ItemDim1Code) is not part of the key here.
 				d1 := int64(0)
 				if id, ok := resolveDimvalFromToken(pgTx, "dimval1", colorCode); ok {
 					d1 = id
@@ -609,11 +610,8 @@ DO UPDATE SET dim_id = EXCLUDED.dim_id, updated_at = EXCLUDED.updated_at
 					continue
 				}
 				var d3 sql.NullInt64
-				// dim3 corresponds to mmitem_dim.val2 (usually ItemDim1Code).
-				if id, ok := resolveDimvalFromToken(pgTx, "dimval1", dim1Code); ok {
-					d3 = sql.NullInt64{Int64: id, Valid: true}
-					resolvedDim3++
-				} else if id, ok := resolveDimvalFromToken(pgTx, "dimval1", dim3Code); ok {
+				// dim3 corresponds to mmitem_dim.val3 (ItemDim3Code).
+				if id, ok := resolveDimvalFromToken(pgTx, "dimval1", dim3Code); ok {
 					d3 = sql.NullInt64{Int64: id, Valid: true}
 					resolvedDim3++
 				}
@@ -720,15 +718,14 @@ WHERE mmitem_id = $1
 				if !v1.Valid || v1.Int64 <= 0 {
 					continue
 				}
+				// Variant key in this installation: (val1=color, val3=itemdim3_if_any). Ignore val2 (size).
 				d1 := v1.Int64
+				_ = mmdimID
+				_ = v2
 
 				var d3 sql.NullInt64
-				// In production data we've observed the variant key as (val1, val2). val3 may exist but is not
-				// used as the second axis for pricing/campaign matching in this app.
-				_ = mmdimID
-				_ = v3
-				if v2.Valid && v2.Int64 > 0 {
-					d3 = sql.NullInt64{Int64: v2.Int64, Valid: true}
+				if v3.Valid && v3.Int64 > 0 {
+					d3 = sql.NullInt64{Int64: v3.Int64, Valid: true}
 				}
 
 				key := fmt.Sprintf("%d|%d", d1, func() int64 {
diff --git a/svc/routes/wholesale_campaigns.go b/svc/routes/wholesale_campaigns.go
index 19670a6..8e8dc0f 100644
--- a/svc/routes/wholesale_campaigns.go
+++ b/svc/routes/wholesale_campaigns.go
@@ -772,14 +772,13 @@ WHERE mmitem_id = ANY($1::bigint[])
 				if !v1.Valid || v1.Int64 <= 0 {
 					continue
 				}
+				// Variant key in this installation: (val1=color, val3=itemdim3_if_any). Ignore val2 (size).
 				d1 := v1.Int64
-
-				d3k := int64(0)
-				// Variant key in this app is (val1, val2). val3 may exist but is not the second axis for matching.
 				_ = mmdimID
-				_ = v3
-				if v2.Valid && v2.Int64 > 0 {
-					d3k = v2.Int64
+				_ = v2
+				d3k := int64(0)
+				if v3.Valid && v3.Int64 > 0 {
+					d3k = v3.Int64
 				}
 
 				code := strings.TrimSpace(itemToCode[itemID])
@@ -886,7 +885,7 @@ ORDER BY dim_id, updated_at DESC;
 			}
 
 			// Map Nebim tokens to PG integer ids (dimval1 namespace).
-			// This app uses key: dim1=<color>, dim3=<size> to match mmitem_dim (val1,val2).
+			// This app uses key: dim1=<color>, dim3=<itemdim3> to match mmitem_dim (val1,val3).
 			d1 := int64(0)
 			if id, ok := resolveDimID("dimval1", colorCode); ok {
 				d1 = id
@@ -895,7 +894,7 @@ ORDER BY dim_id, updated_at DESC;
 				continue
 			}
 			d3k := int64(0)
-			if id, ok := resolveDimID("dimval1", dim1Code); ok {
+			if id, ok := resolveDimID("dimval1", dim3Code); ok {
 				d3k = id
 			}
 			key := fmt.Sprintf("%d|%d|%d", itemID, d1, d3k)