Does COE you enter with need to be the same one used for a Visa?

Could be a stupid question, I cant seem to find a clear answer on this.

So i know that I need:

• valid COE to apply for Visa (spouse in my case)
• valid COE to enter Japan (within 3 months of Issue)

Im very unlikely to enter japan within 3 months of my COE being issued. I might be able to, but not something I want to stress about – got to sell a house etc. and not going to list the house before visa confirmed, despite the visa probably being a formality.

The question is, am I Ok just to request another COE, likely before the other one has expired so that I have a valid COE upon entry?

And confirming a valid COE is definately needed alongside a valid spouse visa upon entry?

EDIT
so from the responses (thanks) yes i have to enter japan within 3 months of issue of the COE and visa., no way around it. if can’t depart in that time frame, start the entire process again.