Limit apple id on 1 phone..how to increase

You can only create so many Apple ID’s with iCloud on a phone in one year as the related article that you were reading when you posted your questions to the community explains. You can create another Apple ID/iCloud account on another device and sign into that ID on the phone.

Read this again

If you see a Could Not Create Apple ID or Could Not Set Up iCloud message - Apple Support

abbiealbert wrote:

how to increase apple id limit on 1 phone

See the Related Article, linked above, for your options here.

You cannot have more than one Apple ID on your iPhone that is linked to your iCloud account. You can use another Apple ID for your Media & Purchases.