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ServiceNow Troubleshooting · LessonReviewed by Praveen T, ServiceNow Trainer, 9 yrs · Updated · Published · current release · fixes

ServiceNow Resolving ACL errors

Fix "Security constraints prevent access" the right way.

Quick answer

Access problems in ServiceNow are almost always ACLs, so diagnose before loosening anything. Impersonate the affected user to reproduce it, enable Security Debug to see which ACL denied access, check both the table ACL and the field ACL, confirm the user holds the required role through a group, and scope the role correctly rather than granting admin.

Access issues are almost always ACLs. Diagnose before you loosen anything.

  • Impersonate the affected user to reproduce it.
  • Enable Security Debug to see which ACL denied access.
  • Check both table and field ACLs, field wins.
  • Confirm the user has the required role via a group.
  • Never fix it by granting admin, scope the role correctly.
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