Hi,
you can have only one question mark (?) in the URL that limits where the page ref ends and params start, then each param must be separated with ampersand (&).
try this:
https://URL:9081/api/sam/v2/software_instances?token=de******************89&columns[]=instance_id&columns[]=component_name&columns[]=exclusion_or_suppress_comment&criteria={%22and%22:[[%22computer_name%22,%22=%22,%22gm8%22]]}
Thanks.
#AIX#SupportMigration#Support