What to do (and avoid) for this specific scenario
- Default to formal email, not text. The relationship is professional even if the invitation feels personal.
- Don't bring it up at work afterward unless your boss does first. Treat it as if the invitation was never extended in the working relationship.
- Don't reveal what the conflict is unless asked — saying "my sister's wedding" might be true but reads as a flex.
- Send the decline immediately when the invitation arrives. Schedule conflicts feel more believable when you respond quickly.
The 4-line shape every good decline follows
Regardless of relationship or reason, every working decline hits these four beats in order:
- Thank. One sentence acknowledging the invitation.
- Decline.One sentence with the actual no. Don't bury it.
- Reason (optional). One sentence, concrete. Either specific enough to be believed or skipped entirely.
- Wish them well. One sentence aimed at the day itself.
The three drafts above use that shape. The differences between them are in word choice and register, not structure.
Make this yours
The samples above use placeholder names. Use the customize button below to swap them for the actual people involved — the generator will keep the relationship-appropriate register and just substitute the names.