diff --git a/src/clj/auto_ap/graphql/checks.clj b/src/clj/auto_ap/graphql/checks.clj
index ee1b631f..c430e9dc 100644
--- a/src/clj/auto_ap/graphql/checks.clj
+++ b/src/clj/auto_ap/graphql/checks.clj
@@ -31,6 +31,7 @@
    [clojure.set :as set]
    [clojure.string :as str]
    [clojure.tools.logging :as log]
+   [com.brunobonacci.mulog :as mu]
    [com.walmartlabs.lacinia.util :refer [attach-resolvers]]
    [config.core :refer [env]]
    [datomic.api :as d]
@@ -390,14 +391,11 @@
   (let [type (keyword "payment-type" (name type))
         invoices (d-invoices/get-multi (map :invoice-id invoice-payments))
         client (d-clients/get-by-id client-id)
-        vendors (->> (d/q '[:find [?e ...]
-                            :in $
-                            :where [?e :vendor/name]]
-                          (d/db conn))
-                     (d/pull-many (d/db conn) d-vendors/default-read)
-                     (by :db/id))
+        
         invoice-amounts (by :invoice-id :amount invoice-payments)
         invoices-grouped-by-vendor (group-by (comp :db/id :invoice/vendor) invoices)
+        vendors (->> (d/pull-many (d/db conn) d-vendors/default-read (keys invoices-grouped-by-vendor))
+                     (by :db/id))
         bank-account (d-bank-accounts/get-by-id bank-account-id)
         _ (validate-belonging client-id invoices bank-account)
         _ (when (and (nil? (:bank-account/check-number bank-account))
@@ -405,23 +403,27 @@
             (let [message (str "The bank account " (:bank-account/name bank-account) " does not have a starting check number. Please ask the integreat staff to initialize it.")]
               (throw (ex-info message
                               {:validation-error message}))))
-        checks (->> (for [[[vendor-id invoices] index] (map vector invoices-grouped-by-vendor (range))]
-                      (invoices->entities invoices (vendors vendor-id) client bank-account type index invoice-amounts))
-                    (reduce into [])
-                    doall)
+        checks (mu/trace ::build-checks []
+                         (->> (for [[[vendor-id invoices] index] (map vector invoices-grouped-by-vendor (range))]
+                                (invoices->entities invoices (vendors vendor-id) client bank-account type index invoice-amounts))
+                              (reduce into [])
+                              doall))
         checks (if (= type :payment-type/check)
                  (conj checks [:inc (:db/id bank-account) :bank-account/check-number (count invoices-grouped-by-vendor)])
                  checks)]
     (when (= type :payment-type/check)
-      (make-pdfs (filter #(and (= :payment-type/check (:payment/type %))
-                               (> (:payment/amount %) 0.0))
-                         checks)))
+      (mu/trace ::making-pdfs [:checks checks]
+                (make-pdfs (filter #(and (= :payment-type/check (:payment/type %))
+                                         (> (:payment/amount %) 0.0))
+                                   checks))))
     (transact-with-ledger checks id)
     
     
     {:invoices  (d-invoices/get-multi (map :invoice-id invoice-payments))
      :pdf-url (if (= type :payment-type/check)
-                (merge-pdfs (filter identity (map :payment/s3-key checks)))
+                (mu/trace ::merge-pdfs
+                          []
+                          (merge-pdfs (filter identity (map :payment/s3-key checks))))
                 nil)}))
 
 (defn get-payment-page [context args _]
diff --git a/src/clj/auto_ap/graphql/invoices.clj b/src/clj/auto_ap/graphql/invoices.clj
index 95045818..bd909491 100644
--- a/src/clj/auto_ap/graphql/invoices.clj
+++ b/src/clj/auto_ap/graphql/invoices.clj
@@ -24,7 +24,8 @@
    [clojure.set :as set]
    [clojure.tools.logging :as log]
    [datomic.api :as d]
-   [manifold.deferred :as de]))
+   [manifold.deferred :as de]
+   [com.brunobonacci.mulog :as mu]))
 
 (defn ->graphql [invoice user ]
   (if (= "admin" (:user/role user))
@@ -188,20 +189,24 @@
 
 
 (defn add-and-print-invoice [context {{:keys [total client_id vendor_id] :as in} :invoice bank-account-id :bank_account_id type :type} _]
-  (assert-no-conflicting in)
-  (assert-can-see-client (:id context) client_id)
-  (assert-bank-account-belongs client_id bank-account-id)
-  (assert-not-locked  client_id (:date in))
-  (assert-valid-expense-accounts (:expense_accounts in) vendor_id)
-  (assert-invoice-amounts-add-up in)
+  (mu/trace ::validating-invoice [:invoice in]
+            (do 
+              (assert-no-conflicting in)
+              (assert-can-see-client (:id context) client_id)
+              (assert-bank-account-belongs client_id bank-account-id)
+              (assert-not-locked  client_id (:date in))
+              (assert-valid-expense-accounts (:expense_accounts in) vendor_id)
+              (assert-invoice-amounts-add-up in)))
   (let [transaction-result (transact-with-ledger [(add-invoice-transaction in)] (:id context))]
-    (-> (gq-checks/print-checks-internal [{:invoice-id (get-in transaction-result [:tempids "invoice"])
-                                  :amount total}]
-                                client_id
-                                bank-account-id
-                                type
-                                (:id context))
-        u/->graphql)))
+    (mu/trace ::printing-checks
+              []
+              (-> (gq-checks/print-checks-internal [{:invoice-id (get-in transaction-result [:tempids "invoice"])
+                                                     :amount     total}]
+                                                   client_id
+                                                   bank-account-id
+                                                   type
+                                                   (:id context))
+                  u/->graphql))))
 
 (defn edit-invoice [context {{:keys [id due invoice_number vendor_id total date expense_accounts scheduled_payment] :as in} :invoice} _]
   (let [invoice (d-invoices/get-by-id id)