diff --git a/go.mod b/go.mod
index 866a36b6f7..7e453323d2 100644
--- a/go.mod
+++ b/go.mod
@@ -14,6 +14,7 @@ require (
 	github.com/terraform-providers/terraform-provider-aws v1.60.1-0.20210625132053-af2d5c0ad54f
 	go.mongodb.org/atlas v0.21.0
 	go.mongodb.org/realm v0.1.0
+	golang.org/x/exp v0.0.0-20221208152030-732eee02a75a
 )
 
 require (
@@ -111,16 +112,16 @@ require (
 	github.com/vmihailenco/tagparser v0.1.1 // indirect
 	github.com/zclconf/go-cty v1.12.1 // indirect
 	go.opencensus.io v0.23.0 // indirect
-	golang.org/x/crypto v0.0.0-20220517005047-85d78b3ac167 // indirect
+	golang.org/x/crypto v0.1.0 // indirect
 	golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 // indirect
-	golang.org/x/mod v0.4.2 // indirect
-	golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 // indirect
+	golang.org/x/mod v0.6.0 // indirect
+	golang.org/x/net v0.1.0 // indirect
 	golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c // indirect
-	golang.org/x/sys v0.0.0-20220517195934-5e4e11fc645e // indirect
-	golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 // indirect
-	golang.org/x/text v0.3.7 // indirect
+	golang.org/x/sys v0.1.0 // indirect
+	golang.org/x/term v0.1.0 // indirect
+	golang.org/x/text v0.4.0 // indirect
 	golang.org/x/time v0.0.0-20200630173020-3af7569d3a1e // indirect
-	golang.org/x/tools v0.1.3 // indirect
+	golang.org/x/tools v0.2.0 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 	google.golang.org/api v0.48.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
diff --git a/go.sum b/go.sum
index f2f150a18d..fa944f827c 100644
--- a/go.sum
+++ b/go.sum
@@ -963,6 +963,8 @@ golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm
 golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
 golang.org/x/crypto v0.0.0-20220517005047-85d78b3ac167 h1:O8uGbHCqlTp2P6QJSLmCojM4mN6UemYv8K+dCnmHmu0=
 golang.org/x/crypto v0.0.0-20220517005047-85d78b3ac167/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
+golang.org/x/crypto v0.1.0 h1:MDRAIl0xIo9Io2xV565hzXHw3zVseKrJKodhohM5CjU=
+golang.org/x/crypto v0.1.0/go.mod h1:RecgLatLF4+eUMCP1PoPZQb+cVrJcOPbHkTkbkB9sbw=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -974,6 +976,8 @@ golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u0
 golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
 golang.org/x/exp v0.0.0-20200331195152-e8c3332aa8e5/go.mod h1:4M0jN8W1tt0AVLNr8HDosyJCDCDuyL9N9+3m7wDWgKw=
+golang.org/x/exp v0.0.0-20221208152030-732eee02a75a h1:4iLhBPcpqFmylhnkbY3W0ONLUYYkDAW9xMFLfxgsvCw=
+golang.org/x/exp v0.0.0-20221208152030-732eee02a75a/go.mod h1:CxIveKay+FTh1D0yPZemJVgC/95VzuuOLq5Qi4xnoYc=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
@@ -1001,6 +1005,8 @@ golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2 h1:Gz96sIWK3OalVv/I/qNygP42zyoKp3xptRVCWRFEBvo=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.6.0 h1:b9gGHsz9/HhJ3HF5DHQytPpuwocVTChQJK3AvoLRD5I=
+golang.org/x/mod v0.6.0/go.mod h1:4mET923SAdbXp2ki8ey+zGs1SLqsuM2Y0uvdZR/fUNI=
 golang.org/x/net v0.0.0-20180530234432-1e491301e022/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180811021610-c39426892332/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -1057,6 +1063,8 @@ golang.org/x/net v0.0.0-20210503060351-7fd8e65b6420/go.mod h1:9nx3DQGgdP8bBQD5qx
 golang.org/x/net v0.0.0-20210614182718-04defd469f4e/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2 h1:CIJ76btIcR3eFI5EgSo6k1qKw9KJexJuRLI9G7Hp5wE=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
+golang.org/x/net v0.1.0 h1:hZ/3BUoy5aId7sCpA/Tc5lt8DkFgdVS2onTpJsZ/fl0=
+golang.org/x/net v0.1.0/go.mod h1:Cx3nUiGt4eDBEyega/BKRp+/AlGL8hYe7U9odMt2Cco=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190604053449-0f29369cfe45/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
@@ -1164,9 +1172,13 @@ golang.org/x/sys v0.0.0-20210927094055-39ccf1dd6fa6/go.mod h1:oPkhp1MJrh7nUepCBc
 golang.org/x/sys v0.0.0-20220503163025-988cb79eb6c6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220517195934-5e4e11fc645e h1:w36l2Uw3dRan1K3TyXriXvY+6T56GNmlKGcqiQUJDfM=
 golang.org/x/sys v0.0.0-20220517195934-5e4e11fc645e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.1.0 h1:kunALQeHf1/185U1i0GOB/fy1IPRDDpuoOOqRReG57U=
+golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 h1:v+OssWQX+hTHEmOBgwxdZxK4zHq3yOs8F9J7mk0PY8E=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/term v0.1.0 h1:g6Z6vPFA9dYBAF7DWcH6sCcOntplXsDKcliusYijMlw=
+golang.org/x/term v0.1.0/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -1177,6 +1189,8 @@ golang.org/x/text v0.3.5/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
+golang.org/x/text v0.4.0 h1:BrVqGRd7+k1DiOgtnFvAkoQEWQvBc25ouMJM6429SFg=
+golang.org/x/text v0.4.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/time v0.0.0-20180412165947-fbb02b2291d2/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
@@ -1283,6 +1297,8 @@ golang.org/x/tools v0.1.2-0.20210512205948-8287d5da45e4/go.mod h1:o0xws9oXOQQZyj
 golang.org/x/tools v0.1.2/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.3 h1:L69ShwSZEyCsLKoAxDKeMvLDZkumEe8gXUZAjab0tX8=
 golang.org/x/tools v0.1.3/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
+golang.org/x/tools v0.2.0 h1:G6AHpWxTMGY1KyEYoAQ5WTtIekUUvDNjan3ugu60JvE=
+golang.org/x/tools v0.2.0/go.mod h1:y4OqIKeOV/fWJetJ8bXPU1sEVniLMIyDAZWeHdV+NTA=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
diff --git a/mongodbatlas/resource_mongodbatlas_advanced_cluster.go b/mongodbatlas/resource_mongodbatlas_advanced_cluster.go
index b82ebe0213..4c5d73f61d 100644
--- a/mongodbatlas/resource_mongodbatlas_advanced_cluster.go
+++ b/mongodbatlas/resource_mongodbatlas_advanced_cluster.go
@@ -19,6 +19,7 @@ import (
 	"github.com/mwielbut/pointy"
 	"github.com/spf13/cast"
 	matlas "go.mongodb.org/atlas/mongodbatlas"
+	"golang.org/x/exp/slices"
 )
 
 type acCtxKey string
@@ -182,7 +183,7 @@ func resourceMongoDBAtlasAdvancedCluster() *schema.Resource {
 				Computed: true,
 			},
 			"replication_specs": {
-				Type:     schema.TypeSet,
+				Type:     schema.TypeList,
 				Required: true,
 				Elem: &schema.Resource{
 					Schema: map[string]*schema.Schema{
@@ -197,7 +198,7 @@ func resourceMongoDBAtlasAdvancedCluster() *schema.Resource {
 							ValidateFunc: validation.IntBetween(1, 50),
 						},
 						"region_configs": {
-							Type:     schema.TypeSet,
+							Type:     schema.TypeList,
 							Required: true,
 							Elem: &schema.Resource{
 								Schema: map[string]*schema.Schema{
@@ -307,7 +308,7 @@ func resourceMongoDBAtlasAdvancedCluster() *schema.Resource {
 						},
 					},
 				},
-				Set: replicationSpecsHashSet,
+				// Set: replicationSpecsHashSet,
 			},
 			"root_cert_type": {
 				Type:     schema.TypeString,
@@ -376,7 +377,7 @@ func resourceMongoDBAtlasAdvancedClusterCreate(ctx context.Context, d *schema.Re
 	request := &matlas.AdvancedCluster{
 		Name:             d.Get("name").(string),
 		ClusterType:      cast.ToString(d.Get("cluster_type")),
-		ReplicationSpecs: expandAdvancedReplicationSpecs(d.Get("replication_specs").(*schema.Set).List()),
+		ReplicationSpecs: expandAdvancedReplicationSpecs(d.Get("replication_specs").([]interface{})),
 	}
 
 	if v, ok := d.GetOk("backup_enabled"); ok {
@@ -569,7 +570,7 @@ func resourceMongoDBAtlasAdvancedClusterRead(ctx context.Context, d *schema.Reso
 		return diag.FromErr(fmt.Errorf(errorClusterAdvancedSetting, "pit_enabled", clusterName, err))
 	}
 
-	replicationSpecs, err := flattenAdvancedReplicationSpecs(ctx, cluster.ReplicationSpecs, d.Get("replication_specs").(*schema.Set).List(), d, conn)
+	replicationSpecs, err := flattenAdvancedReplicationSpecs(ctx, cluster.ReplicationSpecs, d.Get("replication_specs").([]interface{}), d, conn)
 	if err != nil {
 		return diag.FromErr(fmt.Errorf(errorClusterAdvancedSetting, "replication_specs", clusterName, err))
 	}
@@ -695,7 +696,7 @@ func resourceMongoDBAtlasAdvancedClusterUpdate(ctx context.Context, d *schema.Re
 	}
 
 	if d.HasChange("replication_specs") {
-		cluster.ReplicationSpecs = expandAdvancedReplicationSpecs(d.Get("replication_specs").(*schema.Set).List())
+		cluster.ReplicationSpecs = expandAdvancedReplicationSpecs(d.Get("replication_specs").([]interface{}))
 	}
 
 	if d.HasChange("root_cert_type") {
@@ -854,7 +855,7 @@ func expandAdvancedReplicationSpec(tfMap map[string]interface{}) *matlas.Advance
 	apiObject := &matlas.AdvancedReplicationSpec{
 		NumShards:     tfMap["num_shards"].(int),
 		ZoneName:      tfMap["zone_name"].(string),
-		RegionConfigs: expandRegionConfigs(tfMap["region_configs"].(*schema.Set).List()),
+		RegionConfigs: expandRegionConfigs(tfMap["region_configs"].([]interface{})),
 	}
 
 	return apiObject
@@ -1008,7 +1009,7 @@ func flattenAdvancedReplicationSpec(ctx context.Context, apiObject *matlas.Advan
 	tfMap["num_shards"] = apiObject.NumShards
 	tfMap["id"] = apiObject.ID
 	if tfMapObject != nil {
-		object, containerIds, err := flattenAdvancedReplicationSpecRegionConfigs(ctx, apiObject.RegionConfigs, tfMapObject["region_configs"].(*schema.Set).List(), d, conn)
+		object, containerIds, err := flattenAdvancedReplicationSpecRegionConfigs(ctx, apiObject.RegionConfigs, tfMapObject["region_configs"].([]interface{}), d, conn)
 		if err != nil {
 			return nil, err
 		}
@@ -1027,30 +1028,75 @@ func flattenAdvancedReplicationSpec(ctx context.Context, apiObject *matlas.Advan
 	return tfMap, nil
 }
 
-func flattenAdvancedReplicationSpecs(ctx context.Context, apiObjects []*matlas.AdvancedReplicationSpec, tfMapObjects []interface{},
+func doesAdvancedReplicationSpecMatchAPI(tfObject map[string]interface{}, apiObject *matlas.AdvancedReplicationSpec) bool {
+	return tfObject["id"] == apiObject.ID || (tfObject["id"] == nil && tfObject["zone_name"] == apiObject.ZoneName)
+}
+
+func flattenAdvancedReplicationSpecs(ctx context.Context, rawAPIObjects []*matlas.AdvancedReplicationSpec, tfMapObjects []interface{},
 	d *schema.ResourceData, conn *matlas.Client) ([]map[string]interface{}, error) {
+	var apiObjects []*matlas.AdvancedReplicationSpec
+
+	for _, advancedReplicationSpec := range rawAPIObjects {
+		if advancedReplicationSpec != nil {
+			apiObjects = append(apiObjects, advancedReplicationSpec)
+		}
+	}
+
 	if len(apiObjects) == 0 {
 		return nil, nil
 	}
 
-	var tfList []map[string]interface{}
+	tfList := make([]map[string]interface{}, len(apiObjects))
+	wasAPIObjectUsed := make([]bool, len(apiObjects))
 
-	for i, apiObject := range apiObjects {
-		if apiObject == nil {
-			continue
+	for i := 0; i < len(tfList); i++ {
+		var tfMapObject map[string]interface{}
+
+		if len(tfMapObjects) > i {
+			tfMapObject = tfMapObjects[i].(map[string]interface{})
 		}
 
+		for j := 0; j < len(apiObjects); j++ {
+			if wasAPIObjectUsed[j] {
+				continue
+			}
+
+			if !doesAdvancedReplicationSpecMatchAPI(tfMapObject, apiObjects[j]) {
+				continue
+			}
+
+			advancedReplicationSpec, err := flattenAdvancedReplicationSpec(ctx, apiObjects[j], tfMapObject, d, conn)
+
+			if err != nil {
+				return nil, err
+			}
+
+			tfList[i] = advancedReplicationSpec
+			wasAPIObjectUsed[j] = true
+			break
+		}
+	}
+
+	for i, tfo := range tfList {
 		var tfMapObject map[string]interface{}
 
+		if tfo != nil {
+			continue
+		}
+
 		if len(tfMapObjects) > i {
 			tfMapObject = tfMapObjects[i].(map[string]interface{})
 		}
 
-		advancedReplicationSpec, err := flattenAdvancedReplicationSpec(ctx, apiObject, tfMapObject, d, conn)
+		j := slices.IndexFunc(wasAPIObjectUsed, func(isUsed bool) bool { return !isUsed })
+		advancedReplicationSpec, err := flattenAdvancedReplicationSpec(ctx, apiObjects[j], tfMapObject, d, conn)
+
 		if err != nil {
 			return nil, err
 		}
-		tfList = append(tfList, advancedReplicationSpec)
+
+		tfList[i] = advancedReplicationSpec
+		wasAPIObjectUsed[j] = true
 	}
 
 	return tfList, nil
@@ -1259,7 +1305,7 @@ func replicationSpecsHashSet(v interface{}) int {
 	var buf bytes.Buffer
 	m := v.(map[string]interface{})
 	buf.WriteString(fmt.Sprintf("%d", m["num_shards"].(int)))
-	buf.WriteString(fmt.Sprintf("%+v", m["region_configs"].(*schema.Set)))
+	buf.WriteString(fmt.Sprintf("%+v", m["region_configs"].([]interface{})))
 	buf.WriteString(m["zone_name"].(string))
 	return schema.HashString(buf.String())
 }
@@ -1270,8 +1316,8 @@ func getUpgradeRequest(d *schema.ResourceData) *matlas.Cluster {
 	}
 
 	cs, us := d.GetChange("replication_specs")
-	currentSpecs := expandAdvancedReplicationSpecs(cs.(*schema.Set).List())
-	updatedSpecs := expandAdvancedReplicationSpecs(us.(*schema.Set).List())
+	currentSpecs := expandAdvancedReplicationSpecs(cs.([]interface{}))
+	updatedSpecs := expandAdvancedReplicationSpecs(us.([]interface{}))
 
 	if len(currentSpecs) != 1 || len(updatedSpecs) != 1 || len(currentSpecs[0].RegionConfigs) != 1 || len(updatedSpecs[0].RegionConfigs) != 1 {
 		return nil
diff --git a/mongodbatlas/resource_mongodbatlas_advanced_cluster_migration_test.go b/mongodbatlas/resource_mongodbatlas_advanced_cluster_migration_test.go
index aaa6961af8..dfd4082294 100644
--- a/mongodbatlas/resource_mongodbatlas_advanced_cluster_migration_test.go
+++ b/mongodbatlas/resource_mongodbatlas_advanced_cluster_migration_test.go
@@ -58,3 +58,75 @@ func TestAccClusterRSAdvancedClusterMigrateState_empty_advancedConfig(t *testing
 		return
 	}
 }
+
+func TestAccClusterRSAdvancedClusterV0StateUpgrade_ReplicationSpecs(t *testing.T) {
+	v0State := map[string]interface{}{
+		"project_id":     "test-id",
+		"name":           "test-cluster",
+		"cluster_type":   "REPLICASET",
+		"backup_enabled": true,
+		"disk_size_gb":   256,
+		"replication_specs": []interface{}{
+			map[string]interface{}{
+				"zone_name": "Test Zone",
+				"region_configs": []interface{}{
+					map[string]interface{}{
+						"priority":      7,
+						"provider_name": "AWS",
+						"region_name":   "US_EAST_1",
+						"electable_specs": []interface{}{
+							map[string]interface{}{
+								"instance_size": "M30",
+								"node_count":    3,
+							},
+						},
+						"read_only_specs": []interface{}{
+							map[string]interface{}{
+								"disk_iops":     0,
+								"instance_size": "M30",
+								"node_count":    0,
+							},
+						},
+						"auto_scaling": []interface{}{
+							map[string]interface{}{
+								"compute_enabled":            true,
+								"compute_max_instance_size":  "M60",
+								"compute_min_instance_size":  "M30",
+								"compute_scale_down_enabled": true,
+								"disk_gb_enabled":            false,
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	v0Config := terraform.NewResourceConfigRaw(v0State)
+	diags := resourceMongoDBAtlasAdvancedClusterResourceV0().Validate(v0Config)
+
+	if len(diags) > 0 {
+		fmt.Println(diags)
+		t.Error("test precondition failed - invalid mongodb cluster v0 config")
+
+		return
+	}
+
+	// test migrate function
+	v1State := migrateBIConnectorConfig(v0State)
+
+	v1Config := terraform.NewResourceConfigRaw(v1State)
+	diags = resourceMongoDBAtlasAdvancedCluster().Validate(v1Config)
+	if len(diags) > 0 {
+		fmt.Println(diags)
+		t.Error("migrated advanced cluster replication_specs invalid")
+
+		return
+	}
+
+	if len(v1State["replication_specs"].([]interface{})) != len(v0State["replication_specs"].([]interface{})) {
+		t.Error("migrated replication specs did not contain the same number of elements")
+
+		return
+	}
+}