A currency to convert from is required to retrieve exchange rate information

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Posted on by MS-29011540-0

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Dear all,
I hope you are all doing well.
I had this error message when trying to post a PO invoice

This is a dev machine v42, i use USMF demo data which is already configured, i checked GL currencies, delete user usage but none worked.

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Dynamics 365 Finance

Microsoft Dynamics AX

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Komi Siabi 13,240 Most Valuable Professional on at

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Can you double check you have a System curency on the System admin module?

System administration > Setup > System parameters.

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Alireza Eshaghzadeh 15,225 Super User 2026 Season 1 on at

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Hi @MS-29011540-0

This error usually means that D365FO is trying to calculate an exchange rate during PO invoice posting, but the currency to convert from is blank.

Deleting usage data will normally not fix this. I would suggest checking the setup and the document currency.

Please verify

1. System administration > Setup > System parameters: Check that System currency and System exchange rate type is populated.

2. General ledger > Currencies > Currency exchange rates: Confirm that exchange rates exist for the invoice date.

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Abhilash Warrier 8,659 Super User 2026 Season 1 on at

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Hi,

Please review the below setups -

1. General Ledger Setup for Accounting Currency.

2. Review the currency exchange rates to find any inconsistency.

3. All Vendor - Review the vendor setup

Accounts payable > Vendors > All vendors > Fabrikam Electronics

Currency = USD

4. If you are still facing the issue, trying create a new invoice and test.

Regards,

Abhilash

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MS-29011540-0 431 on at

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@Komi Siabi @Alireza Eshaghzadeh @Abhilash Warrier
Thanks for you replies, but everything is Ok. i double checked the GL setup, system administration currency, vendor's currency, PO header/line currency, taxes currency everything is Ok. basically, everything in the PO in USD currency, nothing in another currency.

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Abhilash Warrier 8,659 Super User 2026 Season 1 on at

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Thank you for the response.

Could you please confirm whether this issue is occurring only for this specific invoice? Also, is the behavior limited to this particular vendor and invoice? Have you tried creating a new invoice for the same vendor, and if so, does the issue still occur in that scenario?

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MS-29011540-0 431 on at

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@Abhilash Warrier
The issue exists for all vendors all existing non invoiced invoices and new ones.
please note that this is a new created dev environment v42

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CA Neeraj Kumar 5,262 Super User 2026 Season 1 on at

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Hi,

Please check the AP parameters, what is the setup defined as of now? If it is Ledger, then it will pick only from Exchange rate defined in the Ledger setup, else as per defined exchange rate in AP parameters.

Regards,

Neeraj Kumar

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MS-29011540-0 431 on at

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@CA Neeraj Kumar
Thank you for your reply.
Since i was in Dev environment, i had to enable this fixed rate button in order to skip the issue.

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