Hi Laxmi,
Please check in t.code K023 and S_ALR_87012823 in both reports availble budget is matching or not? please check it.
Please check internal order is having inconsistency or not as below.
1) T.code KO23/ Extras/ analysis/
2). Enter =sum in command field to indentify the inconsistency.
Resolution:
Please execute it KO31 to resolve the inconsistency.
Thanks
Ram