I removed the SRID from the end of the Alter statement so i could use the default and that ended in an error as well. However if i create a new table with column type ST_GEOMETRY, it works. I just cannot alter this existing table. Strange!
Could not execute 'ALTER TABLE "TABLE1"."DIM_LATLONG" ADD ("LOCATION" ST_GEOMETRY)' in 114 ms 847 µs .
SAP DBTech JDBC: [2048]: column store error: add attribute error: [2999] general error (no further information available)