I have created a Hyperlink formula field with "_self" as target parameter as shown in the picture. This works correctly in Salesforce classic. But it opens in a new tab, when I use it in lightning experience. Please help me find a solution to this. Thanks!
Best Answer
Check your critical updates I know that in winter 19 there was a critical update added to resolve this behavour although it says this has now been automatically enabled:
https://releasenotes.docs.salesforce.com/en-us/spring19/release-notes/rn_general_lex_honor_target_value_formula_fields.htm
The formula looks correct to me.
Although I always wrap the target in "_self" not '_self'