What invitation is required for a Russian private visa?
Short answer
The accepted invitation or supporting document for a Russian private visa depends on the purpose, nationality and responsible mission.
Verified answer
Requirements can depend on passport nationality, legal residence, purpose and the responsible Russian mission. Use the linked official source and confirm the current checklist before submission.
This answer is versioned independently. It contains no inferred visa-rule value: every material conclusion is resolved from linked immutable Rule Versions and official Russian-source Evidence.
What to do next
Use the current purpose-specific checklist published by the responsible Russian mission.