diff --git a/02.md b/02.md
index d1457e4..1a45b52 100644
--- a/02.md
+++ b/02.md
@@ -192,11 +192,12 @@ A useful flow is:
 
 ## Errors
 
-| Code   | Description                        |
-|--------|------------------------------------|
-| 11002  | Insufficient fee included           |
-| 11003  | Fee over paid                      |
-| 12001  | Keyset is not known                |
+| Code   | Description                              |
+|--------|------------------------------------------|
+| 11002  | Insufficient fee included                |
+| 11003  | Fee over paid                            |
+| 12001  | Keyset is not known                      |
+| 12002  | Keyset is inactive, cannot sign messages |
 
 [00]: 00.md
 [01]: 01.md
diff --git a/03.md b/03.md
index 6de5f85..b7e843b 100644
--- a/03.md
+++ b/03.md
@@ -80,8 +80,10 @@ If successful, `Bob` will respond with a `PostSwapResponse`
 
 | Code   | Description                               |
 |--------|-------------------------------------------|
-| 11001  | Token is already spent                    |
 | 10002  | Blinded message of output already signed  |
+| 10003  | Token could not be verified               |
+| 11001  | Token is already spent                    |
+| 12002  | Keyset is inactive, cannot sign messages  |
 
 [00]: 00.md
 [01]: 01.md
diff --git a/04.md b/04.md
index 8d611f9..b3e38ca 100644
--- a/04.md
+++ b/04.md
@@ -229,6 +229,7 @@ Example `MintMethodSetting`:
 |--------|-------------------------------------------|
 | 10002  | Blinded message of output already signed  |
 | 11005  | Unit in request is not supported          |
+| 12002  | Keyset is inactive, cannot sign messages  |
 | 20001  | Quote request is not paid                 |
 | 20002  | Tokens have already been issued for quote |
 | 20003  | Minting is disabled                       |
diff --git a/05.md b/05.md
index 1ecc1a2..9045d30 100644
--- a/05.md
+++ b/05.md
@@ -202,6 +202,7 @@ Example `MeltMethodSetting`:
 | Code   | Description                               |
 |--------|-------------------------------------------|
 | 10002  | Blinded message of output already signed  |
+| 10003  | Token could not be verified               |
 | 11001  | Token is already spent                    |
 | 11005  | Unit in request is not supported          |
 | 20005  | Quote is pending                          |