Change size of custom field in live site

Can we change custom field size direct in live site? version 14 or 15.

it’s a field length, please check this.

@NCP Thanks,

i’m already check this. I have issue of related length and update custom app in live instance first i’m updating a length of in local bench and updatein one testing instange in testing instance work fine but i’m updating live instance in live instance this error

pymysql.err.OperationalError: (1118, ‘Row size too large. The maximum row size for the used table type, not counting BLOBs, is 65535. This includes storage overhead, check the manual. You have to change some columns to TEXT or BLOBs’)

this error getting only live instance same code and length is change via custom app local to test instance but not adding in live instance

Same issue: pymysql.err.OperationalError: (1118, 'Row size too large. The maximum row size for the used table - #2 by NCP