Hi @Gorges, Shannon,
Thank you for posting in this community.
Based on the description of your question, I tested and found that indeed View Conditional Formatting doesn't support creating rules on Currency field.
Currency columns do not support JSON formatting. If you want to use JSON for the currency column you will need to create custom JSON schema to achieve your requirement.
The method described above is a bit more complicated. If it is convenient, I would prefer that you use a number column instead of a currency column. Number columns can be better applied to JSON formatting.
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