definitely just draw a column header It may mislead you as if it has solved the problem in that area. In a program that automatically assigns the punching control, it is as if you have thrown one more layer of reinforcement on it. When you open the raft foundation reinforcements window, you can see the punching control next to it. You will see that additional punching reinforcement has already been thrown in the columns where you see the Z sign. However, your foundation height is probably 70 It should be -80 cm. Along with increasing this height, you should increase the column size until you reduce the nd value you see in the column result table to 250-300. The reason for this error is because your spans are a bit too much, it is due to the overloading of the floor loads in that area, and because the column size is small, the mass at the point where it affects It warns you against basic stapling that cannot meet the total load of the . however, this error will be gone by simply increasing the base height and the Z mark that appears in red is gone, but it does not provide full security. It is normal to encounter this problem in openings up to 7-8 m and if you have exceeded the floor loads. If you can add the project we can help more."mhmt_ali":1879smol" said:After analyzing the project I have done, while checking the column information, I saw a (Z) warning in front of the column names as seen in the picture. What can I do to remove the warning. I would appreciate your help.