BADI for generating free Text

Hello,

When user maintains a valutation in the Specification , A free text has to be generated automatically based on the value of valuation.

Is there any other BADI available in EH&S where we can we write programm for this requirement

I tried with BADI EHS_VAI_ADD_DAT , but not succussfull.

Any suggestions,

Thanking you,

Regards,

Satya