We have a PO carried forwarded (with Amount Type 0350) from last fiscal year 2021 to current one 2022 having value 262,078.80. Looking at the PO history tab in ME23N, apparently, there are 3 line items of identitical amount 87,359.60 which makes the total as 262,078.80. Also there is another service entry sheet line item of 346,817.61 (screenshot attached).
When user tries to activate the check box 'Price Change Allowed' under tab 'Services' then system shows the error message FMAVC006. This message shows budget exhaust by 61,850.17. When I run FMAVCR01 on same budget address of PO account assignments then system shows available budget exacty as 61,850.17 (attached).
I have also attached the breakdown of column 'Consumed Budget' from FMRP_RW_BUDCON of same budget address.
I have already tried FMAVCDIFF but no result.
Please guide what could be root cause of this error and how to resolve it.