Dynamics 365 Business Central – Making sense of the Currency Exchange Rates Page when setting Exchange Rates


Coming from a Dynamics GP background I initially found the exchange rate setup in Dynamics 365 Business Central a little confusing. In Dynamics GP you set an exchange rate, and then configure whether you wish the system to divide or multiple the foreign currency amount by that rate, to get the local currency amount, and that’s it.

However, in Dynamics 365 Business Central things are a little different. In this post I’ll walk through the key fields in the Currency Exchange Rates page to explain how you can set Exchange Rates in Dynamics 365 Business Central.

** This post only goes through setting Exchange Rates for Documents. It doesn’t touch on the Exchange Adjustment side of things.

Currency Setup

To access the “Currency Exchange Rate” page you must first go to the “Currencies” page, highlight the currency in question, and then drill down on the “Exchange Rate”. Alternatively from the “Currencies” page you can highlight the currency and click “Process > Exch. Rates” as per below.

This should then open the “Currency Exchange Rates” window which is shown below:

As I mentioned previously this window looks a little confusing to me? It appears there’s more than one place to enter a rate for the same currency? There’s also no option to specify if you wish to divide or multiply the currency at a given rate? (which is something I’m used to). So where do you enter the rate exactly?

Making sense of it all

I’ve found the key fields in this window are the “Exchange Rate Amount” and the “Relational Exch. Rate Amount”.

The “Exchange Rate Amount” is the rate to use for the “Currency Code” selected on the line, and the “Relational Exch. Rate Amount” relates to the rate to use for the “Relational Currency Code”. (generally its left blank so its the local currency – see further below for an example where this isn’t the case)

This can be further explained in the image below

Therefore using the Currency Exchange Rates window shown above, as we have 1.0 in the Relational Exch. Rate Amount (GBP) and 1.3 in the Exchange Rate Amount (EUR) this means 1.3 Euros is equal to 1 GBP. (The “Exchange Rate Amount” is acting as the exchange rate)

Hence entering a transaction for €200.00 would equate to £153.85 (i.e. 200 / 1.3 = 153.85)

I could also flip this by entering 1.0 in the “Exchange Rate Amount” and 0.76923 in the “Relational Exch. Rate Amount” as per below:

This now means the “Relational Exch. Rate Amount” is acting as the Exchange Rate.

In this example €1 (Exchange Rate Amount) is equal to £0.76923 (Relational Exch. Rate Amount). Therefore entering a transaction for €200.00 would also equate to £153.85 (i.e. 200 * 0.76923)

Both would work exactly the same its just a slightly different configuration.

** I would tend to use the divide method as the rates make more sense in this scenario.

Bonus – Adding a Relational Currency Code

I’ve never come across a situation where the “Relational Currency Code” is anything other than blank (i.e. the local currency) however now we know how the relationships work let’s test this out.

I’ve therefore changed the Currency Exchange Rates page for EUR to include USD as the Relational Currency Code as per below

And the USD rate is below:

Therefore if I were to raise a €200 Invoice the GBP will be calculated as follows:

Step 1 Euros to USD :- €200 / 1.3 = $153.8462

Step 2 USD to GBP :- $153.8462 / 1.39 = £110.68

To confirm I added an Invoice in Business Central and below is the statistics page confirming our calculations


Although confusing at first (at least to me) understanding how the Exchange Rates are picked up and used is fairly straight forward. Its also flexible offering various options for how to calculate exchange rates.

Thanks for reading!

Dynamics GP – Steps for adding a new Currency in Dynamics GP


This article outlines the steps needed to create a new currency in Dynamics GP. The article assumes you have the relevant security permissions to access the various windows and also the system password if one is used.

Adding a new currency

First you need to add the currency via “Tools > Setup > System > Currency”

In this case I’m adding the Japanese Yen

After the currency has been added grant your Dynamics GP companies access to the new currency via “Tools > Setup > System > Multicurrency Access”

Once in the “Multicurrency Access Setup” window select the new currency and tick the relevant companies. (this requires all users are out of the system)

Next add the “Exchange Tables” via “Tools > Setup > System > Exchange Tables”

Once in the “Multicurrency Exchange Rate Table Setup” window create the Exchange Table ID and click “Rates” and add the exchange rates.

** You can review any existing exchange tables to confirm the settings used in your system. In my example I’m choosing “Divide” as the calculation method and “Exact Date” as the default rate. You may wish to use different settings on your system.

Next you need to go back to the Multicurrency Access Setup window and grant access to the Exchange Table ID we just created.

Once the currency and exchange table have been created, and access has been granted, we just need to assign the various rate types to the exchange table. We do this via “Tools > Setup > Financial > Rate Types”

In my example I only intend to have one exchange table so I’ve assigned all the rate types to the new exchange table.

** Please note you may only have one rate type in your system. My example is based on adding a new currency for use in the Fabrikam demo company which has three rate types.

Once this is all setup I can test adding a transaction and this all works fine. I’ve added a transaction for 204 Japanese Yen which equates to 2 US Dollars.

If Inventory Items are used in your system you may also need to assign the new currency to either all or some of your Items. This can be done individually via “Cards > Inventory > Item Currency” or en masse via “Tools > Utilities > Inventory > Price List Utilities”


As you can see there are quite a few steps involved in creating a new currency but hopefully if you follow the steps outlined above it will assist you in setting this up.

Thanks for reading!

GP to BC Fundamentals Video- General Posting Groups

As I’ve mentioned several times on my blog I originally come from a Dynamics GP background so making the transition to Dynamics 365 Business Central has been a real learning journey for me, and one that is still ongoing.

Along the way I’ve managed to learn some important concepts which I hope to share in a series of short videos.

The first one focuses on how GP and BC differ when setting up and selecting default GL codes.

Hopefully new GP to BC users will find it useful. (or anyone new to BC for that matter)

Thanks for reading!