"of" seems to be the wrong preposition, and an article is also missing. Assuming "adjustment entries" are items that will be incorporated somehow into the XYZ account, I would suggest this: Have you posted the adjustment entries to the XYZ account? The second sentence is OK.
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kolokoy The adjustment entries are related to XYZ or for XYZ. So the preposition is still " to the"? Thanks GPYIf they are related to the account but not actually incorporated within the account then "to" is probably not correct. It may be that "for" is suitable. It is quite hard to judge without knowing the exact relationship between the adjustment entries a