Alternatively, use the backslash of the normal shell to avoid the characters you want to avoid interpretation in Org mode as markup:
* \_TARGET\_
Backslash characters are visible in your Emacs buffer, but hidden when exported - for example. for HTML or PDF-via-LaTeX.
This acceleration works in many other situations, for example. SR\_1234 to display as SR_1234 during export, not as an index.
source share