Hi @Ozge 
you can try to change it in translations.
In TEXT translation window , you can set a different message as a translation text for particular error message.
ex:

Hi @Kelum Pradeep Kumara 

How to determine a specific line belongs to which LU?

Thanks

Ozge

Hi @Ozge 
you can search by using the ‘prog text’ field
Put full error text or part of it into prog text’ field in search option.
ex: 
when I releasing a service quotation it gives the below error. I want to change the error text

So I can search part of the error text in Text translation window as below.
 

Then you can change the error text as you wish 

Please try these steps.

If you can give the exact error, then I can show the exact text translation entry.

Please remember, you need to refresh the dictionary cache and restart the application after changing this.

Hi @Kelum Pradeep Kumara 

Thanks your answer. By the way, how to see a trigger rule of the error massage?

Ozge

Hi @Ozge 
Do you mean, what are the conditions to trigger the error message?

If so, actually you can’t see it through the application and need to check the back end code to check the exact conditions. But probably it may be explained in the help/functional documentation.

Otherwise, please raise a support ticket, then IFS Support will give the exact answer.