What does HRESULT 0x803FA07D (SL_REMAPPING_MDOLLAR_INVALID_ARGUMENT) mean?

SL_REMAPPING_MDOLLAR_INVALID_ARGUMENT

The scope of SL_REMAPPING_MDOLLAR_INVALID_ARGUMENT, HRESULT 0x803FA07D, is Microsoft-hosted activation and product-key rule processing: the activation service rejected an argument in the activation request before applying business rules. In a hosted activation invalid argument incident, client API and request version should be captured before another retry changes state.

Why this HRESULT is specific

The failing value can be a key field, product identifier, request option, locale, timestamp or structured payload element. The caller must retain the outbound request schema and identify the exact rejected field.

How to distinguish nearby failures

Do not merge neighboring statuses: This result occurs before NO_RULES_TO_ACTIVATE, which means a valid request reached business-rule selection. The hosted activation invalid argument diagnosis remains attributable only while the primary record and the affected identity stay fixed.

Controlled troubleshooting sequence

1. Record the earliest event stating that the activation service rejected an argument in the activation request before applying business rules, together with the code, UTC time, and the same identity fields.
2. Change one prerequisite: Remove optional fields one at a time without changing product identity; do not combine this with a store reset, key replacement, account removal, package reinstall, or unrelated repair.
3. Repeat the user operation: Re-run the original operation and require that a schema-valid request reaches the intended activation rule and returns a product-specific outcome; if another HRESULT appears, diagnose it as a separate result.

Evidence-preserving cautions

While investigating this result, do not treat every invalid argument as an invalid product key.

Verification

The incident is resolved only when a schema-valid request reaches the intended activation rule and returns a product-specific outcome.

Technical references

• Microsoft Win32 metadata: winerror.h — status definition reference.
• Microsoft: SoftwareLicensingProduct WMI class — owning service/API reference.
• Microsoft: SoftwareLicensingService methods — diagnostic/remediation API reference.
• Microsoft: Slmgr. Vbs options — lifecycle reference.