What does HRESULT 0x8004004C (TAPI_E_CALLCENTER_INVALAGENTACTIVITY) mean?

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Description:

Invalid agent activity.

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TAPI_E_CALLCENTER_INVALAGENTSTATE	TAPI_E_REGISTRY_SETTING_CORRUPT

TAPI_E_CALLCENTER_INVALAGENTACTIVITY

The agent activity value is not recognized

TAPI_E_CALLCENTER_INVALAGENTACTIVITY (0x8004004C) means the provider rejects the activity identifier supplied for a call-center agent. It is distinct from agent identity, password, or state-transition validation.

Evidence to capture

Record agent ID, requested activity ID, provider/address, enumerated activity list, and whether cached activities survived provider reinitialization.

Focused correction

Select an activity from the provider current activity set and retry for the same verified agent. Refresh cached IDs after reinitialization or configuration changes.

Technical references

Microsoft: TAPI_E constants.
Microsoft: TAPI 3.1 Reference.
Microsoft: Telephony API interfaces.

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