diff --git a/docs/api/index.rst b/docs/api/index.rst
index e266e2f51984e08adcbb40e2dcb3bc8b3db7d692..41a4397fdddb2d1f8e6d1a98707b0d534e310d10 100644
--- a/docs/api/index.rst
+++ b/docs/api/index.rst
@@ -11,6 +11,7 @@ attributes and method signatures etc.
 
    rattail
    rattail/app
+   rattail/batch/custorder
    rattail/batch/handlers
    rattail/batch/purchase
    rattail/config
diff --git a/docs/api/rattail/batch/custorder.rst b/docs/api/rattail/batch/custorder.rst
new file mode 100644
index 0000000000000000000000000000000000000000..84bdfea12f3eb74ce7e21bac5270c544d264a630
--- /dev/null
+++ b/docs/api/rattail/batch/custorder.rst
@@ -0,0 +1,6 @@
+
+``rattail.batch.custorder``
+===========================
+
+.. automodule:: rattail.batch.custorder
+   :members:
diff --git a/rattail/batch/custorder.py b/rattail/batch/custorder.py
index 913ec47891592a76d2b74fc17c520e61aacf9773..5a11273209bed290b1c5b804f5e3b764a099dc7a 100644
--- a/rattail/batch/custorder.py
+++ b/rattail/batch/custorder.py
@@ -39,12 +39,29 @@ class CustomerOrderBatchHandler(BatchHandler):
     handler must inspect the
     :attr:`~rattail.db.model.batch.custorder.CustomerOrderBatch.mode` attribute
     of each batch it deals with, in order to determine which logic to apply.
+
+    .. attribute:: has_custom_product_autocomplete
+
+       If true, this flag indicates that the handler provides custom
+       autocomplete logic for use when selecting a product while
+       creating a new order.
     """
     batch_model_class = model.CustomerOrderBatch
+    has_custom_product_autocomplete = False
 
     def get_case_size_for_product(self, product):
         return product.case_size
 
+    def custom_product_autocomplete(self, session, term, **kwargs):
+        """
+        For the given term, this should return a (possibly empty) list
+        of products which "match" the term.  Each element in the list
+        should be a dict with "label" and "value" keys.
+        """
+        raise NotImplementedError("Please define the "
+                                  "{}.custom_product_autocomplete() "
+                                  "method.".format(__class__.__name__))
+
     def refresh_row(self, row):
         if not row.product:
             if row.item_entry: