I created a job invoice last year, but the total amount invoiced is less than the actual cost. Unfortunately, since the year 2023 has already ended and the financial statements are being finalized, I cannot make any changes to that year. The CPA suggested creating an adjusting entry in January 2024, which will be reversed later. However, since this is a job invoice involving cost codes, I'm not sure how to make the necessary adjustments in Sage as it's not allowing me to do so. Any help will be greatly appreciated I am new at this

thank You