ST/OT Transfer Order from One Currency to Another - Blanks Invalid Error Message

I'm new to JDE and for the first time our exchange rate (F0015) is at par.... 1.0000000 CAD to USD and vice versa.

Now, when we try to enter a Transfer Order from CAD to USD, we are getting the Blanks Invalid error message. This is occurring even though the Blanks Invalid errors are referring to the SO and PO Exchange Rates. They are both 1.0000000 which is what is in F0015. So, I'm confused onto why this would occur.

I appeciate your time and any suggestions would be greatly appreciated!!!!

Also, we are using the P4210 and a specific version we use for ST/OT Transfer Orders.

Can you try to enter the normal saler order for same customer if it works means problem is in the PO set up side.

Have you defined Currency codes in the customer master/supplier master for the from/to branch plants?

Thanks,
Matt