diff --git a/openapi/api-docs.yaml b/openapi/api-docs.yaml
index b679c33b5c82..329e314a1580 100644
--- a/openapi/api-docs.yaml
+++ b/openapi/api-docs.yaml
@@ -12144,9 +12144,8 @@ paths:
         - invoices
       summary: "List invoices"
       description: |
-        Lists invoices, search and filters allow fine grained lists to be generated.  
-        Query parameters can be added to performed more fine grained filtering of the invoices,  
-        these are handled by the InvoiceFilters class which defines the methods available"
+        Lists invoices with the option to chain multiple query parameters allowing fine grained filtering of the list.  
+        
       operationId: getInvoices
       parameters:
         - $ref: "#/components/parameters/X-API-TOKEN"
@@ -12275,7 +12274,7 @@ paths:
               $ref: "#/components/schemas/FillableInvoice"
       responses:
         200:
-          description: "Returns the saved invoice object"
+          description: "Returns the saved invoice entity"
           headers:
             X-MINIMUM-CLIENT-VERSION:
               $ref: "#/components/headers/X-MINIMUM-CLIENT-VERSION"
@@ -12419,7 +12418,7 @@ paths:
       tags:
         - invoices
       summary: "Edit invoice"
-      description: "Displays an invoice by id"
+      description: "Displays an invoice by id for editting"
       operationId: editInvoice
       parameters:
         - $ref: "#/components/parameters/X-API-TOKEN"
@@ -12502,16 +12501,66 @@ paths:
         - $ref: "#/components/parameters/X-Requested-With"
         - $ref: "#/components/parameters/index"
       requestBody:
-        description: "User credentials"
+        description: "Bulk action details"
         required: true
         content:
           application/json:
             schema:
-              type: array
-              items:
-                description: "Array of hashed IDs to be bulk 'actioned"
-                type: integer
-                example: "[0,1,2,3]"
+              type: object
+              properties:
+                action:
+                  type: string
+                  description: "The action to be performed"
+                  examples:
+                    bulk_download:
+                      value: bulk_download
+                      summary: Bulk download an array of invoice PDFs (These are sent to the admin via email.)
+                    download:
+                      value: download
+                      summary: Download a single PDF. (Returns a single PDF object)
+                    bulk_print:
+                      value: bulk_print
+                      summary: Merges an array of Invoice PDFs for easy one click printing.
+                    auto_bill:
+                      value: auto_bill
+                      summary: Attempts to automatically bill the invoices with the payment method on file.
+                    clone_to_invoice:
+                      value: clone_to_invoice
+                      summary: Returns a clone of the invoice.
+                    clone_to_quote:
+                      value: clone_to_quote
+                      summary: Returns a quote cloned using the properties of the given invoice.
+                    mark_paid:
+                      value: mark_paid
+                      summary: Marks an array of invoices as paid.
+                    mark_sent:
+                      value: mark_sent
+                      summary: Marks an array of invoices as sent.
+                    restore:
+                      value: restore
+                      summary: Restores an array of invoices
+                    delete:
+                      value: delete
+                      summary: Deletes an array of invoices
+                    archive:
+                      value: archive
+                      summary: Archives an array of invoices
+                    cancel:
+                      value: cancel
+                      summary: Cancels an array of invoices
+                    email:
+                      value: email
+                      summary: Emails an array of invoices
+                    send_email:
+                      value: send_email
+                      summary: Emails an array of invoices. Requires additional properties to be sent. `email_type`
+                ids:
+                  type: array
+                  items:
+                    description: "Array of hashed IDs to be bulk 'actioned"
+                    type: integer
+                    example: "[0,1,2,3]"
+
       responses:
         200:
           description: "The Bulk Action response"
diff --git a/openapi/paths/invoices.yaml b/openapi/paths/invoices.yaml
index 2008cf9c23f6..1e5ef306854c 100644
--- a/openapi/paths/invoices.yaml
+++ b/openapi/paths/invoices.yaml
@@ -375,12 +375,45 @@
                     bulk_download:
                       value: bulk_download
                       summary: Bulk download an array of invoice PDFs (These are sent to the admin via email.)
-                    account:
-                      value: account
-                      summary: The associated Account
-                    bank_transactions:
-                      value: bank_transactions
-                      summary: The associated Bank Transactions
+                    download:
+                      value: download
+                      summary: Download a single PDF. (Returns a single PDF object)
+                    bulk_print:
+                      value: bulk_print
+                      summary: Merges an array of Invoice PDFs for easy one click printing.
+                    auto_bill:
+                      value: auto_bill
+                      summary: Attempts to automatically bill the invoices with the payment method on file.
+                    clone_to_invoice:
+                      value: clone_to_invoice
+                      summary: Returns a clone of the invoice.
+                    clone_to_quote:
+                      value: clone_to_quote
+                      summary: Returns a quote cloned using the properties of the given invoice.
+                    mark_paid:
+                      value: mark_paid
+                      summary: Marks an array of invoices as paid.
+                    mark_sent:
+                      value: mark_sent
+                      summary: Marks an array of invoices as sent.
+                    restore:
+                      value: restore
+                      summary: Restores an array of invoices
+                    delete:
+                      value: delete
+                      summary: Deletes an array of invoices
+                    archive:
+                      value: archive
+                      summary: Archives an array of invoices
+                    cancel:
+                      value: cancel
+                      summary: Cancels an array of invoices
+                    email:
+                      value: email
+                      summary: Emails an array of invoices
+                    send_email:
+                      value: send_email
+                      summary: Emails an array of invoices. Requires additional properties to be sent. `email_type`
                 ids:
                   type: array
                   items: