diff --git a/docs/tally/compatibility/compatibility-matrix.json b/docs/tally/compatibility/compatibility-matrix.json
index 60a4f488..d3667ee6 100644
--- a/docs/tally/compatibility/compatibility-matrix.json
+++ b/docs/tally/compatibility/compatibility-matrix.json
@@ -1,7 +1,7 @@
 {
   "schema_version": 1,
   "bridge_commit_sha": "be1c20cc3fd66fa1ece196505c69f26e555e4b8e",
-  "compatibility_surface_sha256": "c86a3689f0981f6015ddb908999701cb795bd8650330fd47d0d15414e5262986",
+  "compatibility_surface_sha256": "eaa41c1142c4c2652bd4fff1b748ed1ca7581fc7d5240c0478f5fc85f8baf4d8",
   "claims": [
     {
       "claim_id": "erp9-6-6-3-windows-education-xml-one-company",
diff --git a/docs/tally/compatibility/compatibility-surface.json b/docs/tally/compatibility/compatibility-surface.json
index d59de4e6..5d6c63a6 100644
--- a/docs/tally/compatibility/compatibility-surface.json
+++ b/docs/tally/compatibility/compatibility-surface.json
@@ -339,7 +339,7 @@
     },
     {
       "path": "src-tauri/src/agent_import.rs",
-      "sha256": "8bebc2497498c905f5eee783251b40b7083695ab958a82b17094159330a8e983"
+      "sha256": "47c1dc77fa33d7e4bcece1cb289e4a3535881391fe45f392e2dca0daa937930f"
     },
     {
       "path": "src-tauri/src/agent_ledgers.rs",
@@ -866,5 +866,5 @@
       "sha256": "a8ac2714fecf51947f2822c8c46d7ce2e8602c732780ff60566a7771f0836f9a"
     }
   ],
-  "manifest_sha256": "c86a3689f0981f6015ddb908999701cb795bd8650330fd47d0d15414e5262986"
+  "manifest_sha256": "eaa41c1142c4c2652bd4fff1b748ed1ca7581fc7d5240c0478f5fc85f8baf4d8"
 }
\ No newline at end of file
diff --git a/src-tauri/src/agent_import.rs b/src-tauri/src/agent_import.rs
index 305fd5de..a1c5996f 100644
--- a/src-tauri/src/agent_import.rs
+++ b/src-tauri/src/agent_import.rs
@@ -1645,10 +1645,23 @@ fn master_match_json(binding: &EntityBinding) -> Value {
                 BindingBasis::ExactName => "exact",
                 BindingBasis::Identifier => "identifier",
             };
+            // A catalogue name can now hold characters the *proposal* side
+            // refuses -- a ledger genuinely named across two lines, say. That
+            // asymmetry is deliberate: the book's name is a fact, a caller's
+            // proposed name is input. But it means the live spelling is not
+            // always something the caller can send back, and the guidance below
+            // used to tell them to copy it regardless. Following that failed the
+            // whole batch on `master_name_unsafe`, because `source_entities`
+            // collects into one Result and refuses on the first bad name.
+            //
+            // Ask the proposal constructor rather than restating its rule, so
+            // the two can never disagree about what is admissible.
+            let importable = SourceEntity::new(binding.position, catalog_name).is_ok();
             json!({
                 "requested": requested,
                 "match_state": match_state,
                 "exact_live_spelling": party_name(catalog_name.clone()),
+                "importable": importable,
             })
         }
         BindingStatus::Ambiguous(unresolved) | BindingStatus::Unmatched(unresolved) => {
@@ -1711,12 +1724,20 @@ fn master_match_json(binding: &EntityBinding) -> Value {
 
 fn master_recovery_guidance(report: &[Value]) -> String {
     let mut guidance = Vec::new();
+    if report.iter().any(|master| {
+        master["match_state"] == "identifier" && master["importable"] != Value::Bool(false)
+    }) {
+        guidance
+            .push("For identifier-bound entries, copy exact_live_spelling from this fresh result.");
+    }
+    // Said separately, because the remedy is the opposite one: this spelling
+    // cannot be copied back at all, and no retry of this payload will post
+    // against that ledger.
     if report
         .iter()
-        .any(|master| master["match_state"] == "identifier")
+        .any(|master| master["importable"] == Value::Bool(false))
     {
-        guidance
-            .push("For identifier-bound entries, copy exact_live_spelling from this fresh result.");
+        guidance.push("One matched ledger is named with a character imports do not accept, so its exact_live_spelling cannot be sent back; have an operator rename it in Tally, then run validate_masters again.");
     }
     if report
         .iter()
diff --git a/src-tauri/src/agent_import_tests.rs b/src-tauri/src/agent_import_tests.rs
index 394ebf72..216a4dfe 100644
--- a/src-tauri/src/agent_import_tests.rs
+++ b/src-tauri/src/agent_import_tests.rs
@@ -1632,6 +1632,59 @@ fn import_recovery_guidance_names_the_state_and_next_safe_read() {
     assert!(guidance.contains("validate_masters again before building"));
 }
 
+/// A book may legitimately hold a ledger named across two lines. The catalogue
+/// carries that name verbatim -- it is a fact about the book -- while the
+/// proposal side still refuses a control character, because a caller's name is
+/// input. The gap between those two correct rules is a spelling the tool can
+/// report but the caller cannot send back.
+///
+/// Telling them to copy it anyway failed the *entire* batch: `source_entities`
+/// collects into one Result and refuses on the first bad name, so one such
+/// ledger takes every voucher in the request down with it.
+#[test]
+fn a_live_spelling_imports_cannot_accept_is_not_offered_for_copying() {
+    let two_line = "GAMMA 5550000002\r\nSecond Line";
+    let matched = one_master_match("GAMMA 5550000002", &[two_line]);
+
+    assert_eq!(
+        matched["match_state"], "identifier",
+        "the ledger still binds on its embedded identifier"
+    );
+    // Party names are wrapped in the egress marker, so read through it rather
+    // than off the field.
+    assert_eq!(
+        matched["exact_live_spelling"][super::super::PARTY_NAME_MARKER].as_str(),
+        Some(two_line),
+        "the book's own spelling is still reported verbatim, because it is what the book holds"
+    );
+    assert_eq!(
+        matched["importable"], false,
+        "but it is marked as one the import side will refuse"
+    );
+
+    let guidance = master_recovery_guidance(&[matched]);
+    assert!(
+        !guidance.contains("copy exact_live_spelling"),
+        "the tool must not instruct a caller to copy a spelling that fails the whole batch"
+    );
+    assert!(
+        guidance.contains("rename it in Tally"),
+        "and must say what the operator can actually do instead"
+    );
+}
+
+/// The ordinary identifier match is unaffected: its spelling is copyable and is
+/// still offered.
+#[test]
+fn an_importable_live_spelling_is_still_offered_for_copying() {
+    let matched = one_master_match("GAMMA 5550000001", &["GAMMA (5550000001)"]);
+    assert_eq!(matched["match_state"], "identifier");
+    assert_eq!(matched["importable"], true);
+    let guidance = master_recovery_guidance(&[matched]);
+    assert!(guidance.contains("copy exact_live_spelling"));
+    assert!(!guidance.contains("rename it in Tally"));
+}
+
 #[tokio::test]
 async fn import_bounds_distinct_ledger_names_before_tally_without_reducing_voucher_limit() {
     let mut repeated = payload();