Actuals are being updated incorrectly in the cost plan breakdowns and the cost plan breakdown gets shiftedIssue Actuals are being updated incorrectly in the cost plan breakdowns and the cost plan breakdown gets shifted. 1.Reproduced the issue on the OOB instance emphgentpar.2.create a new project .3.create a cost plan fill in details like unit cost,quantity and fiscal period for example we are in FY21 06 to FY21 10 as the end period.4.Then the cost plan breakdowns are generated .5.Then we can create an expense line by going back to the project form and then right click on the name of the cost plan under the cost plan tab we can see that we will get a UI action to create an expense Line. You can refer to the screen shot attached for more clarity.6.Then put the date in the expense line in the past for example in may now that we are in June.7.Fill the amount field with some value and then keep the state as processed.8 .Now you will see the cost plan breakdown will show the actuals with the value entered in the amount.9.Now go to the project task related tab and create a new project task and give the name and Save the record you will see the errors "There are actuals recorded for one of the prior periods hence dates cannot be changed "10."Associated cost plan has been shifted " this information message is also present in the header.11. Now when you go back to the cost plan you will see that the actual cost got added with the previous amount that we entered in the cost plan and the cost plan breakdown gets shifted.ResolutionReason: This is a product defect and will be fixed by PRB1502933. Issue: Actuals are being updated incorrectly in the cost plan breakdowns. Most Probable Cause: This is a product defect and is reproducible OOB and the product team is making some code changes and would fix this as a part of PRB1502933. Workaround: Disable the date change cascade property. This will turn off the cost plan moving feature, and prevent corruption The PRB is awaiting fix in sandiego version as per the dev team.