doc(batchmap): clarify relation to readBatchSize (#2418)

Signed-off-by: Martin Thøgersen <[email protected]>
numaproj · Feb 22, 2025 · 1dc2b31 · 1dc2b31
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diff --git a/docs/user-guide/user-defined-functions/map/map.md b/docs/user-guide/user-defined-functions/map/map.md
@@ -66,6 +66,7 @@ When using BatchMap, there are a few important considerations to keep in mind:
 Each Datum has a unique ID tag, which will be used by Numaflow to ensure correctness.
 - Ensure that the length of the BatchResponses list is equal to the number of requests received. This means that for 
 every input data item, there should be a corresponding response in the BatchResponses list.
+- The total batch size can be up to `readBatchSize` long.
 
 Check the links below to see the UDF examples in batch mode for different languages.