I enter the following formula in a cell, =concatenate("Suggested ROP for "&G1). The cell show a 0 (zero). I click on "show formulas" and the formula is gone. Just a 0 in the cell. Using Excel 365. I have not had this issue with other versions of excel. I have had this issue before. I have tried multiple ways of entering including using the "insert Fx" and entering directly into the cell as ="Suggested ROP for "&G1. same results.