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Click on the gear icon in the top right corner to access
⚙ > Finance > Currencies.To add a new currency, click on Add.
Select the ISO code and the currency symbol will automatically be displayed.
Click on Save.
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Do not forget:
Once created, all source and target currencies must be configured in Exchange Rates to reflect the last daily updates.
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⚙ > Finance > Currencies - FlowFit User Documentation - Confluence (atlassian.net)