From 8319ee6c42575c3ac8f122c8dac7c8127362d5ed Mon Sep 17 00:00:00 2001
From: mouseless <97399882+mouseless-eth@users.noreply.github.com>
Date: Fri, 25 Oct 2024 16:18:03 +0100
Subject: [PATCH 1/2] make undefined check on allowance and balance slots

---
 .../utils/prepareUserOperationForErc20Paymaster.ts    | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/packages/permissionless/experimental/pimlico/utils/prepareUserOperationForErc20Paymaster.ts b/packages/permissionless/experimental/pimlico/utils/prepareUserOperationForErc20Paymaster.ts
index 2d153ff9..51597912 100644
--- a/packages/permissionless/experimental/pimlico/utils/prepareUserOperationForErc20Paymaster.ts
+++ b/packages/permissionless/experimental/pimlico/utils/prepareUserOperationForErc20Paymaster.ts
@@ -138,15 +138,16 @@ export const prepareUserOperationForErc20Paymaster =
             }
 
             ////////////////////////////////////////////////////////////////////////////////
-
             // Call prepareUserOperation
             ////////////////////////////////////////////////////////////////////////////////
 
             const allowanceSlot = _allowanceSlot ?? quotes[0].allowanceSlot
             const balanceSlot = _balanceSlot ?? quotes[0].balanceSlot
 
-            const hasSlot =
-                allowanceSlot !== undefined && balanceSlot !== undefined
+            const hasAllowanceSlot = allowanceSlot !== undefined
+            const hasBalanceSlot = balanceSlot !== undefined
+
+            const hasSlot = hasAllowanceSlot && hasBalanceSlot
 
             if (!hasSlot && balanceOverride) {
                 throw new Error(
@@ -155,7 +156,7 @@ export const prepareUserOperationForErc20Paymaster =
             }
 
             const balanceStateOverride =
-                balanceOverride && balanceSlot
+                balanceOverride && hasBalanceSlot
                     ? erc20BalanceOverride({
                           token,
                           owner: account.address,
@@ -164,7 +165,7 @@ export const prepareUserOperationForErc20Paymaster =
                     : undefined
 
             const allowanceStateOverride =
-                balanceOverride && allowanceSlot
+                balanceOverride && hasAllowanceSlot
                     ? erc20AllowanceOverride({
                           token,
                           owner: account.address,

From 25ee9a9c56a99bd3aa5bc0b079e478e3617be542 Mon Sep 17 00:00:00 2001
From: mouseless <97399882+mouseless-eth@users.noreply.github.com>
Date: Fri, 25 Oct 2024 16:20:17 +0100
Subject: [PATCH 2/2] add changeset

---
 .changeset/small-horses-sniff.md | 5 +++++
 1 file changed, 5 insertions(+)
 create mode 100644 .changeset/small-horses-sniff.md

diff --git a/.changeset/small-horses-sniff.md b/.changeset/small-horses-sniff.md
new file mode 100644
index 00000000..a2ee9a49
--- /dev/null
+++ b/.changeset/small-horses-sniff.md
@@ -0,0 +1,5 @@
+---
+"permissionless": patch
+---
+
+Fixed when slot overrides returned from pimlico_getTokenQuotes are zero