How to replace substring in If condition in Power query

[Anonymous]

id	description
1	123acx
1	123acx
2	456qwe

Hi,

i want to replace 123 to 789(or first 3 value to another 3 value), if the id column == 1, and "acx" remains.  how should i code in power query?  Very appreciate your help!

[smpa01 · Accepted solution]

@Anonymous 

if [id]=1 and Text.Contains([description],"acx") then Text.Replace([description],"123","789") else [description]

[Anonymous]

Great! thanks for your solution. it works!