Koch Chemie Orange Power OP is a solvent based cleaner. Designed at a strength to where it can be used on interior surfaces to remove adhesives from a dashboard, eliminate sap resin or gum from a carpet and the like. This also works on exterior to remove rubber, paint from vandalism, all while being less aggressive than Eulex.
OP has the capacity to remove ink from cloth seat materials as well. Ultimately, it's a solution to problems that you never anticipate happening but it always seems to occur. If you step in gum and get in your car, this gets it out of the carpet completely without leaving a hard spot.
You'll rely on a bit of dwell time for this so spray directly onto the surface, allow it to work, and you'll scrub the effected area with a utility grade microfiber towel. Gum and sap releases, ink will diminish and may need another hit to get 100%
Obviously, you need to know the interior surface. Test an inconspicuous spot for color fastness first. You can never be too careful with color and a cleaning agent... and we all know there are those vehicles with problems that have been masked at time of delivery even when new.