ICU-21349 Improve forIdentifier docs to exclude long_unit_identifier.
diff --git a/icu4c/source/i18n/unicode/measunit.h b/icu4c/source/i18n/unicode/measunit.h
index f8168c2..4104f40 100644
--- a/icu4c/source/i18n/unicode/measunit.h
+++ b/icu4c/source/i18n/unicode/measunit.h
@@ -375,14 +375,15 @@
MeasureUnit(MeasureUnit &&other) noexcept;
/**
- * Construct a MeasureUnit from a CLDR Unit Identifier, defined in UTS 35.
- * Validates and canonicalizes the identifier.
+ * Construct a MeasureUnit from a CLDR Core Unit Identifier, defined in UTS
+ * 35. (Core unit identifiers and mixed unit identifiers are supported, long
+ * unit identifiers are not.) Validates and canonicalizes the identifier.
*
* <pre>
* MeasureUnit example = MeasureUnit::forIdentifier("furlong-per-nanosecond")
* </pre>
*
- * @param identifier The CLDR Unit Identifier
+ * @param identifier The CLDR Unit Identifier.
* @param status Set if the identifier is invalid.
* @draft ICU 67
*/
diff --git a/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java b/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
index 26117eb..e05400d 100644
--- a/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
+++ b/icu4j/main/classes/core/src/com/ibm/icu/util/MeasureUnit.java
@@ -412,8 +412,9 @@
}
/**
- * Construct a MeasureUnit from a CLDR Unit Identifier, defined in UTS 35.
- * Validates and canonicalizes the identifier.
+ * Construct a MeasureUnit from a CLDR Core Unit Identifier, defined in UTS
+ * 35. (Core unit identifiers and mixed unit identifiers are supported, long
+ * unit identifiers are not.) Validates and canonicalizes the identifier.
*
* Note: dimensionless <code>MeasureUnit</code> is <code>null</code>
*
