This error generally indicates that another user is editing the transaction you are also trying to open and view. Usually, the other user will have the transaction open in Access Dimensions, but it can also be another user in FocalPoint too.
Please check with your colleagues to verify whether or not another user has the transaction open. If they do, you must wait for them to close the transaction, before you are able to open it within FocalPoint.
If you have checked and there is no one in your organisation that has the transaction open, then you may need to clear the multi-user flags in Dimensions - please refer to our article on How to clear the error Another user processing/allocating transaction for help with this.