When Requesting An Extension At Work messages in a Friendly tone

I can commit to [new date] if that works.

I can commit to [new date] as the revised deadline.

I’d like to request an extension on [task] to make sure it’s done right.

I’d rather take a bit more time and get it right.

I want to be upfront—I’ll need a little extra time to finish this properly.

I don’t want to cut corners here.

I ran into a few blockers—can we shift the due date?

Open to what works best on your end.

I’m running into a few blockers—could we move the due date?

Open to discussing what timing works best.