When you copy a range of cells on the Worksheet and to paste on the Account Spreadsheet:
Highlight a range of target cells with a number of rows and columns equal to the size of those copied, or
Highlight only the upper-left corner cell of the target, and the paste fills accordingly.
Ensure that data linked to the Account Spreadsheet corresponds with the chosen forecast method. For example, if you are linking growth percentages, the forecast method should use a growth rate