# Adding custom QUANTITY units

**URL:** <https://discourse.openehr.org/t/adding-custom-quantity-units/2494>\
**Category:** Archetype Designer\
**Created:** [5 April 2022 03:04 UTC](https://discourse.openehr.org/t/adding-custom-quantity-units/2494 "2022-04-05T03:04:45Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![heather.leslie](https://discourse.openehr.org/user_avatar/discourse.openehr.org/heather.leslie/32/1980_2.png) [@heather.leslie](https://discourse.openehr.org/u/heather.leslie)\
**Post date:** [5 April 2022 04:29 UTC](https://discourse.openehr.org/t/adding-custom-quantity-units/2494/2 "2022-04-05T04:29:52Z")

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There has been considerable discussion on this in the past, but to be honest I’m a little confused too.

Previously we had [CLUSTER.dosage.v1](https://ckm.openehr.org/ckm/archetypes/1013.1.2751) which had to have a separate data element for units, such as you describe.

Then there was this discussion - [Medication amounts and units](https://discourse.openehr.org/t/medication-amounts-and-units/1935) and [CLUSTER.dosage](https://ckm.openehr.org/ckm/archetypes/1013.1.5948) has been updated to v2.

However, I’m not sure how this has landed or if it has been finalised. I can’t see how to represent the units using current tooling either.

@siljelb @ian.mcnicoll @joostholslag - has the previous thread been resolved. If so how?

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