M274 and M273 will be posted when you match PO receipt form a purchase order created from a foreign currency. In this scenario the currency rates used for receipt and the invoice has to be different. The currency rate difference will be posted to M274 or M273.

M277 will be used when you raise the invoice from a different currency other than the PO currency. 

Hope this explains. 

@Shehan Almeida Thank you.

@Shehan Almeida, Can you kindly let me know which accounts do we need to map with M277 and M274 ?

@XitThejaG ,

You can use a liability or asset account for this as the M277 transactions will always setoff each other. 

In core environment we have mapped a liability account. 

Hope this helps.

Shehan Almeida.

For M274 you can map a Revenue account. M273 can use a cost account. 

Kindly advise in this scenario on IFS App10 Update4 case. Difference in currency Rate upon invoice matching and cancelling. With the different currency Rate at the time of Netting out/Cancelling out. The Invoice could not match out. 

The issue has been resolved on M274 and M273 - on Posting Control. Thank you for the post.