diff --git a/TradeSkillMaster_AuctionDB/Modules/data.lua b/TradeSkillMaster_AuctionDB/Modules/data.lua
index 3a975cc..1c660d0 100644
--- a/TradeSkillMaster_AuctionDB/Modules/data.lua
+++ b/TradeSkillMaster_AuctionDB/Modules/data.lua
@@ -169,7 +169,7 @@ function Data:ProcessExternalScanData(scanData, groupItems, scanTime)
 	end
 
 	if not next(data) then return end
-	Data:ProcessData(data, groupSet, nil, scanTime or time())
+	Data:ProcessData(data, groupSet, nil, scanTime or time(), true)
 end
 
 --- Process a table of new market scan data.
@@ -177,11 +177,12 @@ end
 -- @param[opt] groupItems Affects how the minBuyout data is wiped. Use nil for regular behavior.
 -- @param[opt] verifyNewAlgorithm Boolean 'true' if you want to benchmark and verify the new market value algorithm.
 -- @param[opt] scanTime Unix time to use for lastScan values.
-function Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime)
+-- @param[opt] skipMinBuyoutWipe If true, do not wipe minBuyout data before processing.
+function Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime, skipMinBuyoutWipe)
 	-- If we're currently processing data, retry in 0.2 seconds.
 	-- NOTE: This will retry itself over and over until it's able to process.
 	if TSM.processingData then
-		return TSMAPI:CreateTimeDelay(0.2, function() Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime) end)
+		return TSMAPI:CreateTimeDelay(0.2, function() Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime, skipMinBuyoutWipe) end)
 	end
 
 
@@ -191,24 +192,26 @@ function Data:ProcessData(scanData, groupItems, verifyNewAlgorithm, scanTime)
 	-- NOTE: It's no problem if we leave some items empty with "nil" minBuyout
 	-- values. That's how TSM is supposed to work, with items having an empty "minBuyout"
 	-- if there wasn't any "minBuyout" data for that item in the newest data batch.
-	if groupItems then
-		-- A list of items ("group scan") was provided. Wipe data for those items.
-		for itemString in pairs(groupItems) do
-			local itemID = TSMAPI:GetItemID(itemString)
-			if TSM.data[itemID] then  -- If we have existing data for this item.
+	if not skipMinBuyoutWipe then
+		if groupItems then
+			-- A list of items ("group scan") was provided. Wipe data for those items.
+			for itemString in pairs(groupItems) do
+				local itemID = TSMAPI:GetItemID(itemString)
+				if TSM.data[itemID] then  -- If we have existing data for this item.
+					TSM:DecodeItemData(itemID)
+					TSM.data[itemID].minBuyout = nil  -- Erase its stored minBuyout value.
+					TSM:EncodeItemData(itemID)
+				end
+			end
+		else
+			-- Wipe data for all items in memory, regardless of whether they're actually
+			-- included in the incoming scan data or not...
+			for itemID, data in pairs(TSM.data) do
 				TSM:DecodeItemData(itemID)
-				TSM.data[itemID].minBuyout = nil  -- Erase its stored minBuyout value.
+				data.minBuyout = nil  -- Directly updates TSM.data[itemID] via reference.
 				TSM:EncodeItemData(itemID)
 			end
 		end
-	else
-		-- Wipe data for all items in memory, regardless of whether they're actually
-		-- included in the incoming scan data or not...
-		for itemID, data in pairs(TSM.data) do
-			TSM:DecodeItemData(itemID)
-			data.minBuyout = nil  -- Directly updates TSM.data[itemID] via reference.
-			TSM:EncodeItemData(itemID)
-		end
 	end