diff --git a/liquidity/reasons.go b/liquidity/reasons.go
index 5f7cf618..a186e6f8 100644
--- a/liquidity/reasons.go
+++ b/liquidity/reasons.go
@@ -128,6 +128,9 @@ func (r Reason) String() string {
 	case ReasonLoopInUnreachable:
 		return "loop in unreachable"
 
+	case ReasonCustomChannelData:
+		return "custom channel data"
+
 	case ReasonStaticLoopInNoCandidate:
 		return "no static loop-in candidate"
 
diff --git a/loopd/swapclient_server.go b/loopd/swapclient_server.go
index 04353823..f26f1d91 100644
--- a/loopd/swapclient_server.go
+++ b/loopd/swapclient_server.go
@@ -2442,6 +2442,9 @@ func rpcAutoloopReason(reason liquidity.Reason) (looprpc.AutoReason, error) {
 		return looprpc.AutoReason_AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE,
 			nil
 
+	case liquidity.ReasonCustomChannelData:
+		return looprpc.AutoReason_AUTO_REASON_CUSTOM_CHANNEL_DATA, nil
+
 	default:
 		return 0, fmt.Errorf("unknown autoloop reason: %v", reason)
 	}
diff --git a/loopd/swapclient_server_test.go b/loopd/swapclient_server_test.go
index f509b7ae..d7a30f6d 100644
--- a/loopd/swapclient_server_test.go
+++ b/loopd/swapclient_server_test.go
@@ -295,6 +295,16 @@ func TestRPCAutoloopReasonStaticLoopInNoCandidate(t *testing.T) {
 	)
 }
 
+// TestRPCAutoloopReasonCustomChannelData verifies that custom-channel
+// disqualifications are exposed over rpc instead of failing the whole dry run.
+func TestRPCAutoloopReasonCustomChannelData(t *testing.T) {
+	reason, err := rpcAutoloopReason(liquidity.ReasonCustomChannelData)
+	require.NoError(t, err)
+	require.Equal(
+		t, looprpc.AutoReason_AUTO_REASON_CUSTOM_CHANNEL_DATA, reason,
+	)
+}
+
 // TestSwapClientServerStopDaemon ensures that calling StopDaemon triggers the
 // daemon shutdown.
 func TestSwapClientServerStopDaemon(t *testing.T) {
diff --git a/looprpc/client.pb.go b/looprpc/client.pb.go
index 27b8b0fd..d0cf44f1 100644
--- a/looprpc/client.pb.go
+++ b/looprpc/client.pb.go
@@ -427,6 +427,9 @@ const (
 	// No static loop-in candidate indicates that static loop-in autoloop was
 	// selected, but no full-deposit static candidate fit the rule.
 	AutoReason_AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE AutoReason = 14
+	// Custom channel data indicates that the target channel carries custom
+	// channel data and is excluded from the standard autoloop planner.
+	AutoReason_AUTO_REASON_CUSTOM_CHANNEL_DATA AutoReason = 15
 )
 
 // Enum value maps for AutoReason.
@@ -447,6 +450,7 @@ var (
 		12: "AUTO_REASON_BUDGET_INSUFFICIENT",
 		13: "AUTO_REASON_FEE_INSUFFICIENT",
 		14: "AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE",
+		15: "AUTO_REASON_CUSTOM_CHANNEL_DATA",
 	}
 	AutoReason_value = map[string]int32{
 		"AUTO_REASON_UNKNOWN":                     0,
@@ -464,6 +468,7 @@ var (
 		"AUTO_REASON_BUDGET_INSUFFICIENT":         12,
 		"AUTO_REASON_FEE_INSUFFICIENT":            13,
 		"AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE": 14,
+		"AUTO_REASON_CUSTOM_CHANNEL_DATA":         15,
 	}
 )
 
@@ -7059,7 +7064,7 @@ const file_client_proto_rawDesc = "" +
 	"\x1dLOOP_IN_SOURCE_STATIC_ADDRESS\x10\x01*/\n" +
 	"\x11LiquidityRuleType\x12\v\n" +
 	"\aUNKNOWN\x10\x00\x12\r\n" +
-	"\tTHRESHOLD\x10\x01*\xd3\x03\n" +
+	"\tTHRESHOLD\x10\x01*\xf8\x03\n" +
 	"\n" +
 	"AutoReason\x12\x17\n" +
 	"\x13AUTO_REASON_UNKNOWN\x10\x00\x12\"\n" +
@@ -7077,7 +7082,8 @@ const file_client_proto_rawDesc = "" +
 	"\x18AUTO_REASON_LIQUIDITY_OK\x10\v\x12#\n" +
 	"\x1fAUTO_REASON_BUDGET_INSUFFICIENT\x10\f\x12 \n" +
 	"\x1cAUTO_REASON_FEE_INSUFFICIENT\x10\r\x12+\n" +
-	"'AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE\x10\x0e*\x88\x02\n" +
+	"'AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE\x10\x0e\x12#\n" +
+	"\x1fAUTO_REASON_CUSTOM_CHANNEL_DATA\x10\x0f*\x88\x02\n" +
 	"\fDepositState\x12\x11\n" +
 	"\rUNKNOWN_STATE\x10\x00\x12\r\n" +
 	"\tDEPOSITED\x10\x01\x12\x0f\n" +
diff --git a/looprpc/client.proto b/looprpc/client.proto
index 7ab3444c..52b9fcbb 100644
--- a/looprpc/client.proto
+++ b/looprpc/client.proto
@@ -1549,6 +1549,12 @@ enum AutoReason {
     selected, but no full-deposit static candidate fit the rule.
     */
     AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE = 14;
+
+    /*
+    Custom channel data indicates that the target channel carries custom
+    channel data and is excluded from the standard autoloop planner.
+    */
+    AUTO_REASON_CUSTOM_CHANNEL_DATA = 15;
 }
 
 message Disqualified {
diff --git a/looprpc/client.swagger.json b/looprpc/client.swagger.json
index 9a3a4bca..e336cb7d 100644
--- a/looprpc/client.swagger.json
+++ b/looprpc/client.swagger.json
@@ -1544,10 +1544,11 @@
         "AUTO_REASON_LIQUIDITY_OK",
         "AUTO_REASON_BUDGET_INSUFFICIENT",
         "AUTO_REASON_FEE_INSUFFICIENT",
-        "AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE"
+        "AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE",
+        "AUTO_REASON_CUSTOM_CHANNEL_DATA"
       ],
       "default": "AUTO_REASON_UNKNOWN",
-      "description": " - AUTO_REASON_BUDGET_NOT_STARTED: Budget not started indicates that we do not recommend any swaps because\nthe start time for our budget has not arrived yet.\n - AUTO_REASON_SWEEP_FEES: Sweep fees indicates that the estimated fees to sweep swaps are too high\nright now.\n - AUTO_REASON_BUDGET_ELAPSED: Budget elapsed indicates that the autoloop budget for the period has been\nelapsed.\n - AUTO_REASON_IN_FLIGHT: In flight indicates that the limit on in-flight automatically dispatched\nswaps has already been reached.\n - AUTO_REASON_SWAP_FEE: Swap fee indicates that the server fee for a specific swap is too high.\n - AUTO_REASON_MINER_FEE: Miner fee indicates that the miner fee for a specific swap is to high.\n - AUTO_REASON_PREPAY: Prepay indicates that the prepay fee for a specific swap is too high.\n - AUTO_REASON_FAILURE_BACKOFF: Failure backoff indicates that a swap has recently failed for this target,\nand the backoff period has not yet passed.\n - AUTO_REASON_LOOP_OUT: Loop out indicates that a loop out swap is currently utilizing the channel,\nso it is not eligible.\n - AUTO_REASON_LOOP_IN: Loop In indicates that a loop in swap is currently in flight for the peer,\nso it is not eligible.\n - AUTO_REASON_LIQUIDITY_OK: Liquidity ok indicates that a target meets the liquidity balance expressed\nin its rule, so no swap is needed.\n - AUTO_REASON_BUDGET_INSUFFICIENT: Budget insufficient indicates that we cannot perform a swap because we do\nnot have enough pending budget available. This differs from budget elapsed,\nbecause we still have some budget available, but we have allocated it to\nother swaps.\n - AUTO_REASON_FEE_INSUFFICIENT: Fee insufficient indicates that the fee estimate for a swap is higher than\nthe portion of total swap amount that we allow fees to consume.\n - AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE: No static loop-in candidate indicates that static loop-in autoloop was\nselected, but no full-deposit static candidate fit the rule."
+      "description": " - AUTO_REASON_BUDGET_NOT_STARTED: Budget not started indicates that we do not recommend any swaps because\nthe start time for our budget has not arrived yet.\n - AUTO_REASON_SWEEP_FEES: Sweep fees indicates that the estimated fees to sweep swaps are too high\nright now.\n - AUTO_REASON_BUDGET_ELAPSED: Budget elapsed indicates that the autoloop budget for the period has been\nelapsed.\n - AUTO_REASON_IN_FLIGHT: In flight indicates that the limit on in-flight automatically dispatched\nswaps has already been reached.\n - AUTO_REASON_SWAP_FEE: Swap fee indicates that the server fee for a specific swap is too high.\n - AUTO_REASON_MINER_FEE: Miner fee indicates that the miner fee for a specific swap is to high.\n - AUTO_REASON_PREPAY: Prepay indicates that the prepay fee for a specific swap is too high.\n - AUTO_REASON_FAILURE_BACKOFF: Failure backoff indicates that a swap has recently failed for this target,\nand the backoff period has not yet passed.\n - AUTO_REASON_LOOP_OUT: Loop out indicates that a loop out swap is currently utilizing the channel,\nso it is not eligible.\n - AUTO_REASON_LOOP_IN: Loop In indicates that a loop in swap is currently in flight for the peer,\nso it is not eligible.\n - AUTO_REASON_LIQUIDITY_OK: Liquidity ok indicates that a target meets the liquidity balance expressed\nin its rule, so no swap is needed.\n - AUTO_REASON_BUDGET_INSUFFICIENT: Budget insufficient indicates that we cannot perform a swap because we do\nnot have enough pending budget available. This differs from budget elapsed,\nbecause we still have some budget available, but we have allocated it to\nother swaps.\n - AUTO_REASON_FEE_INSUFFICIENT: Fee insufficient indicates that the fee estimate for a swap is higher than\nthe portion of total swap amount that we allow fees to consume.\n - AUTO_REASON_STATIC_LOOP_IN_NO_CANDIDATE: No static loop-in candidate indicates that static loop-in autoloop was\nselected, but no full-deposit static candidate fit the rule.\n - AUTO_REASON_CUSTOM_CHANNEL_DATA: Custom channel data indicates that the target channel carries custom\nchannel data and is excluded from the standard autoloop planner."
     },
     "looprpcClientReservation": {
       "type": "object",