Adv. Cert validation in partial cname setup

Hello Everyone!

Recently I set up partial cname setup, txt record verified, but cname not yet created under authoritative dns.

Now I ordered a advance edge certificate, and it's generated two acme challenge txt records, and I created both on authoritative dns server (infoblox in this case)

Now I could see the txt records are keep on updating, what I expected is txt records should be remain same for 30 days.

The weird thing here is, when ever I update the txt records, immediately Cloudflare edge certificate acme txt record values changing.

Now I want to know do I need to complete the partial cname setup at first place to get this records validated ?


I contacted support, the engineer also told the same as above I asked.

But after checking the CAA record of my zone I came to know only LE allowed, so I deleted and re ordered LE cert from cloudflare after some time it got validated.

Again I checked with cf guy, he told, sorry I misspoken, this will applicable on universal cert only, adv cert can get validated before completion cname setup also.

Note : still I didn't completed the cname setup by creating a cname in infoblox.

Now can anybody from the cloudflare expert team, explain this, how actually it worked ?
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