If u posted the receipt customer group code or any dimensionswrongly..
U can adjust it in posted document dimension table.

Go to object designer, table 359 (posted document dimension) then run.

At there, u will see the dimension, just change it to the correct one.

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How to change dimension group code which has been posted.

Pls go to tools- object-designer
select table, item ledger entry, run..
View column customer dimension group code.
Change it to the correct one.

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